lead是什么意思

lead

1

/ led; lɛd/ n

[U] (chemistry 化) heavy soft

metal of dull greyish colour, used for water pipes, in roofing, as a radiation

shield, etc and which is mixed with other metals to form alloys 铅. =App 10

见附录10.

[C, U] (thin stick of) graphite used as the part of a pencil

that makes a mark 铅笔心.

[C] (nautical 海) lump of lead

fastened to a cord, used for measuring the depth of water beneath a ship 测深锤.

leads / ledz; lɛdz/ [pl] (a) strips of lead used to

cover a roof （铺屋顶用的）铅皮, 长条铅板. (b) area of roof (esp flat) covered with

these 铅皮铺的屋顶. (c) framework of lead strips holding glass panes, eg in a

lattice window 固定玻璃的铅框（如格子窗上的）.

(idm 习语) swing the lead = swing1.

leaded / ˈledɪd;

ˋlɛdɪd/ adj [usu attrib 通常作定语]

covered or framed with lead 铅皮覆盖的; 铅框的: leaded windows,

glass 铅框窗户﹑ 镶有铅框的玻璃. ,leaded `light **all panel of leaded

glass, esp coloured, forming part of a larger window 花饰铅条窗（尤指彩色的,

为大窗的一部分）.

leaden / ˈledn; ˋlɛdn/ adj

1 dull, heavy or slow 沉闷的; 沉重的; 缓慢的: the leaden atmosphere of the museum 博物馆里那沉滞的气氛 * a leaden heart 沉重的心 * moving at a

leaden pace 沉重而缓慢地移动.

2 lead-coloured; dull grey 铅灰色的;

暗灰色的: leaden clouds promising rain 预示有雨的铅灰色的云.

3 [attrib 作定语] (dated 旧) made of lead

铅制的: leaden pipes 铅管.

leading / ˈledɪŋ; ˋlɛdɪŋ/ n [U] (in printing) space between lines of print

（印刷术中的）行间距.

# ,lead `pencil stick of graphite enclosed in a wooden or

metal holder, used for writing or drawing 铅笔.

,lead-`poisoning

n diseased condition caused by taking lead

into the body 铅中毒.

lead

2

/ liːd; lid/ n

[U, sing] guidance given by going first or in front; example

带领; 领头; 榜样: He's the chief trouble-maker; the others just

follow his lead. 他是首要的捣乱分子, 其余的人只是跟着学的.

[sing] distance by which one compe*****, etc is in front

领先的距离: have a lead of three metres, two lengths, half a lap,

etc 领先三米﹑ 两个自首至尾的距离﹑ 半圈等 * The company has built

up a substantial lead in laser technology. 该公司在激光技术方面已大大领先.

the lead [sing] first place or position 首位; 最先的地位:

move/go into the lead 进入领先地位 * take (over) the lead (from **)/lose the lead (to **)

（从某人处）夺得领先地位; 将领导地位丧失（给某人）.

[C] principal part in a play, etc; person who plays this

part 剧中的主角; 扮演主角的演员: play the lead in the new West End hit

在伦敦西区群众喜闻乐见的新戏中担任主角 * [attrib 作定语] the lead

guitarist of the group 队中第一吉他手.

[C] (in card-games) act or right of playing first

（纸牌戏中）首先出牌, 首先出牌权: Whose lead is it? 谁先出牌?

[C] piece of information or evidence that might provide the

solution to a problem; clue 线索: The police are investigating

an important new lead. 警方正在调查一条重要的新线索.

[C] (also leash) strap or cord for leading or

controlling a dog 系狗用的带子或绳索: You must keep your dog on a

lead in the park. 在公园里要牵着你的狗.

[C] length of wire conveying electrical current from a

source to a place of use 导线; 引线.

(idm 习语) follow **'s example/lead = follow.

give (**) a `lead (a) encourage others by doing sth first

带头做某事以鼓励他人: The Church should give more of a lead on basic

moral issues. 教会应当就基本道德问题多做出些榜样. (b) provide a hint towards

the solution of a problem 提示解决问题的线索. take the `lead (in doing sth) set an

example for others to follow 为他人树立榜样.

# `lead story (journali** 新闻) item of news made to appear most prominent

in a newspaper or coming first in a news broadcast

（报纸或新闻广播的）头条新闻.

lead

3

/ liːd; lid/ v (pt, pp led / led; lɛd/)

[Tn, Tn.pr, Tn.p] (a) show (**) the way, esp by going

in front 给（某人）指路; （尤指）领路: lead a guest to his room

领客人到他自己的房间 * He led the group out into the

garden. 他把那些人领出去进了花园. (b) guide or take (**/sth) by holding,

pulling, etc 带领（某人[某物]）（扶着﹑ 牵着等）: lead a blind man across

the road 领着一盲人过马路 * She grasped the reins and led

the horse back. 她抓住?绳把马牵了回去.

[Tn, Tn.pr, Tn.p, Cn.t] ~ ** (to sth) influence the

actions or opinions of ** 引导某人; 影响某人的言行: He's too easily

led. 他太容易受人左右了. * What led you to this

conclusion? 你是怎样得出这个结论的? * Don't be led astray

(ie tempted to do wrong) by him.

不要被他引入歧途. * Her constant lying led me to distrust

everything she said. 她总撤谎, 我完全不相信她的话了.

[Ipr, Ip] be a route or means of access 通; 达: This door leads into the garden. 此门通往花园.

[Ipr] ~ to sth have sth as its result 导致某种结果:

This misprint led to great confusion.

这个印刷错误造成很大的混淆. * Your work seems to be leading

nowhere, ie achieving nothing. 你的工作似乎不会有什麽结果.

[Tn] have a certain kind of life (used esp with the ns shown) 过某种生活（尤与所示名词连用）: lead a

miserable existence, a life of luxury, a double life, etc 过悲惨的生活﹑

豪华的生活﹑ 双重人格的生活等 * decide to lead a new life

决定过新生活.

[I, Ipr, Tn, Tn.pr] ~ (**/sth) (in sth) be in first

place or ahead of (**/sth) 处於首位或领先於（某人[某事物]）: The champion is leading by eighteen seconds. 该冠军领先十八秒. *

lead the world in cancer research 在癌症研究方面走在世界前列.

[I, Tn, Tn.pr] ~ (**/sth) (into sth) be the leader or

head of (**/sth); direct; control 为（某人[某事物]）的领袖或首脑; 率领; 指挥:

I'll take part, but I won't want to lead. 我参加,

但不想当领导. * lead an army, an expedition, a strike

领导军队﹑ 探险﹑ ** * lead a discussion, the singing,

the proceedings 引导讨论﹑ 指挥唱歌﹑ 主持程序 * Who is to lead

the party into the next election? 谁率领该党参加下次选举?

[Tn] (in card games) play (sth) as one's first card

（纸牌戏中）首先出（某牌）: lead trumps, the two of clubs, etc

先出王牌﹑ 梅花2等.

[Ipr] ~ with sth (a) (journali** 新闻) have sth as the main news item 以（某事物）作主要新闻:

We'll lead with the dock strike. 我们把码头工人**当作头条新闻.

(b) (in boxing) use (a particular punch) to begin an attack

（拳击）以（某一拳法）出击: lead with one's left/right

以左[右]拳出击.

(idm 习语) all roads lead to Rome = road. the

blind leading the blind = blind1.

lead ** by the `nose make ** do everything one wishes; control **

completely 牵着某人的鼻子走; 完全控制某人. lead ** a (merry) `dance cause ** a lot of

trouble, esp by making him follow from place to place 给某人造成极**烦（尤指令其跟着东奔西跑）.

lead a `dog's life be constantly worried, troubled or miserable

过狗一般的生活（长期忧虑﹑ 痛苦或悲伤）. lead ** a `dog's life make **'s life wretched

使某人生活痛苦不堪. lead ** to the `altar (dated or joc

旧或谑) marry ** 与某人结婚. lead ** to believe (that)... cause ** to

believe (sth that is false or uncertain) 使某人相信（某假事或不确之事）. lead ** up the

garden `path deceive ** 欺骗某人. lead the `way (to sth) go first; show

the way 先行; 带路: Our scientists are leading the way in space

research. 我们的科学家在宇宙探索中处於领先地位.

(phr v) lead (sth) off start (sth) 开始（某事）: Her recital led off/She led off her recital with a Haydn sonata.

她在独奏会上首先演出的是海顿的奏鸣曲. lead ** on (infml

口) persuade ** to believe or do sth by making false promises or

claims 劝诱某人相信或做某事: The sale**an tried to lead me on with

talk of amazing savings on heating bills. 推销员竭力怂恿我, 说可以节省一大笔取暖费用.

lead up to sth prepare, introduce or go before sth 於某事之先作准备﹑ 引进或进行:

the events leading up to the outbreak of war

导致战争爆发的事件.

# `lead-in n

1

introduction to a subject, etc 引子; 引言; 引论: He told an

amusing story as a lead-in to the serious part of his speech.

他讲了一个有趣的故事作他演说中重要内容的引子.

2 wire connecting an aerial to a

radio or television set （收音机或电视机天线的）引入线.

请问这里为什么用leading，ing形式

逗号后面加ing的谓语动词，是作为修饰中心语的部分。即谓语动词ing和逗号前句的

主语构成一个逻辑关系，逗号前主语是逗号后谓语的逻辑主语。当谓语动词与逻辑主语是主动关系，谓语动词用ing形式。（所构成被动关系，则用ed形式）

简单一句话，逗号后表动词的动作，如果是逗号前的主语发出，就要用ing形式。例如

A dog was running on the playground,following a boy. 一条狗在操场上，跟着一个男孩跑步.

A boy was running on the playground,followed by a little dog. 一个男孩在操场上跑步，后面跟着一条狗

再看看你的问题，growth factor restriction是主语，在这句话后面有个逗号，后接leading，则说明这个leading动作是growth factor retriction主动发出的。如果这个地方用lead，将表现不出这句话的主语是什么，那就矛盾了。

是“be an expert in/at/on”还是“be expert in/at/on”？

这两种用法都是正确的，be an expert in/at/on 意思是在某某方面的专家。而be expert in/at/on是意为在某方面内行，擅长，熟练。

第一个be an expert in/at/on中expert是名词， 意思是专家，能手; 权威； 行家，高手；熟练者；后面的介词接具体的宾语。 in some field指领域，方面，较宽泛。on 指某些方面， at sth接具体的事务。

例句1，He is an expert in child psychology. 他是儿童心理学家。

例句2，He is an expert on modern literature. 他是现代文学研究专家。

例句3，He's an expert at getting his own way. 他在如何达到自己的目的方面很在行。

第二个be expert in/at/on，这里的expert是形容词，意为熟练的；内行的；专家的；经验（或知识）丰富的。

例句1，They are all expert in this field. 他们都是这个领域的行家。

例句2，Both restaurant chefs and housewives are expert in cooking seafood, soups, meat and offal.  饭店厨师和家庭主妇都是烹制海鲜、汤、肉和内脏的行家。

例句3，He is expert at driving racing cars. 他是驾驶赛车的行家。

扩展资料

与expert语义相近的近义词有：

1，specialist，英 [ˈspeʃəlɪst]，美 [ˈspɛʃəlɪst]，专家；专科医生；行家。指某一特定领域或研究中的专家，常可与 expert 换用，常后接介词 in。

例句，He is a specialist/an expert in computer programming. 他是个电脑编程专家。

2，authority，英 [ɔ:ˈθɒrəti]，美 [əˈθɔ:rəti]，意思是权威；权力；学术权威；[复数]当权者。指某学科或某方面的专家、**，常后接介词 on。

例句，She is a leading authority on wheat diseases. 她是小麦病害方面的权威。

英语语法问题 帮忙看下 谢谢 this week是什么类型的短语，前面为什么不加on或in？but acknowled

1、this week是名词性短语。确实，一般是介宾结构做状语。不过现在有很多表时间、方式的名词可以不要介词，直接做状语。比如today,yesterday,next week, this way, another way等等

2、首先but是连词，连接leading...和acknowledging...

leading...和acknowledging...这两个并列的现在分词都是作主句的状语。(或者说是主语补足语)

3、现在分词coming in做名词touri**的后置定语 表示"当地的旅游业"

4、不定式to come做名词months的后置定语 表示"未来的几个月"

5、省略了that。 因为the disaster could have an unintended positive outcome是名词 chance的同位语从句。引导同位语从句的that一般可以省略

lead的过去式？

lead的过去式：led 英 [lɛd]   美 [lɛd]

释义：v. 引导；领先；带领（动词lead的过去式和过去分词）

abbr. 发光二极管(=light emitting diode)；

adj. (形容词)：受指导的；受控制的，被牵着走的

例句：

用作动词 (v.)

1、They led a holy life.

他们过着圣洁的生活。

2、He led Mary to the altar yesterday.

他昨天和玛丽结婚了。

扩展资料：

近义词辨析

introduction　英 [ˌɪntrə'dʌkʃn] 　 　 美 [ˌɪntrə'dʌkʃn] 　 　

n. 介绍；引进；序言；导论

例句用作名词 (n.)：

1、There is an introduction about Norway in this magazine.

这本杂志里有一篇关于挪威的介绍文章。

2、He gave us a brief introduction about his company.

他向我们简要地介绍了一下他的公司。

词义辨析

n. (名词)

introduction, foreword, preface

introduction意为“引言”,用得比较多,有时作为专著,或教科书的第一部分,它又可分为若干章节;

foreword意为“前言”,多指一部作品的短序,内容不一定和作品有关;

preface意为“序言”,可以由作者自序,也可由他人作序,内容不受限制,比foreword长。

leading and lagging是什么意思

leading and lagging的中文翻译

leading and lagging

领导和滞后

双语例句

1

The concept of leading switches and lagging switches is introduced to

realize soft-switching.

为了实现软开关，引入超前管和滞后管的概念.

2

The leading and lagging generators ' output power of the most serious

out-of-stability fault are separately regulated.

对最严重的故障求出各发电机组的能量裕度灵敏度，对领先、落后机组分别采用不同策略增减出力。