main

英 [meɪn]

美 [meɪn]

adj. 主要的; 最重要的
n. (通往建筑物的)主管道，总管，输电干线; (建筑物的)污水总管道; 水源; 煤气源; 电源; (水、煤气、电等的)供应系统; 下水道系统

中考高考 CET4 CET6 考研 IELTS 计算机

Oxford 3000 / Collins.5 / BNC.376 / COCA.888

同义词辨析

essential basic central chief crucial important main【导航词义：主要的，重要的】

essentialadj. 必要的，重要的，基本的

〔辨析〕

语气较强，强调极其重要、必不可少的，暗含某物如缺少某部分，则失去其本质特征的意味。

〔例证〕

Water and food are essential to life.
水和食物对生命是必不可少的。
Her most essential quality is kindness.
她最重要的品质是善良。

basicadj. 基本的，主要的

〔辨析〕

指构成事物最重要、最根本部分的。

〔例证〕

the basic research/rule
基础研究/基本法规
He began to learn the basic principles of chemistry.
他开始学习基本化学原理。
The basic principles must be preserved.
这些基本原则必须保留。

centraladj. 重要的，主要的

〔辨析〕

强调相比较而言更重要或更有影响力的。

〔例证〕

a central figure/idea/role
主要人物/中心观点/重要角色
She played a central role in the debate.
她在辩论中起到了重要作用。

chiefadj. 最重要的，主要的，首席的

〔辨析〕

强调最重要的或等级最高的，只作定语。

〔例证〕

a chief engineer/judge
总工程师/审判长
The chief difficulty of this project lies in lack of funds.
这个项目的主要困难在于缺少资金。

crucialadj. 决定性的，关键的

〔辨析〕

指处于某一重要转折点的，强调某事物非常重要，是其他事物依赖的对象。

〔例证〕

This new policy is crucial to economic development.
这项新政策对经济发展至关重要。
The work of teachers is crucial in spreading knowledge.
教师的工作对知识的传播起着关键性的作用。
Their support was crucial to the project's success.
他们的支持对项目的成功至关重要。
Negotiations are now at a crucial stage.
目前，谈判正处于关键阶段。

importantadj. 重要的，重大的

〔辨析〕

普通用词，指人有权威、有影响力的，或指事物意义重大、有价值的。

〔例证〕

She is obviously an important person.
她显然是个举足轻重的人。
It was one of the most important decisions ever made.
这是所作出的最重大的决定之一。

mainadj. 主要的，最重要的

〔辨析〕

普通用词，多指同类事物中最大、最重要的。

〔例证〕

the main force/problem/road/street
主力军/主要问题/主干道/主要街道
She took down the main points of the speech.
她把演讲的要点记了下来。
Snails would, of course, be the main dish.
蜗牛当然会是道主菜。

习惯用语

adj.

with an eye for/on/to the main chance

瞅机会捞一把
with the hope of using a particular situation in order to gain some advantage for yourself

in the main

大体上；基本上
used to say that a statement is true in most cases
The service here is, in the main, reliable.
这里的服务基本上是可靠的。

牛津词典

adj.

主要的；最重要的
being the largest or most important of its kind
1. Be careful crossing the main road .
  过大马路时小心点儿。
2. the main course (= of a meal)
  主菜
3. We have our main meal at lunchtime.
  我们的正餐是午饭。
4. Reception is in the main building.
  接待处在主楼。
5. Poor housing and unemployment are the main problems.
  住房条件差和失业是主要问题。
6. The main thing is to stay calm.
  最重要的是要保持冷静。

noun

（通往建筑物的）主管道，总管，输电干线
a large pipe that carries water or gas to a building; a large cable that carries electricity to a building
1. a leaking gas main
  漏气的煤气总管
（建筑物的）污水总管道
a large pipe that carries waste/water and sewage (= human waste, etc.) away from a building
水源；煤气源；电源；（水、煤气、电等的）供应系统；下水道系统
the place where the supply of water, gas or electricity to a building or an area starts; the system of providing gas, water and electricity to a building or of carrying it away from a building
1. The house is not yet connected to the mains.
  这房子还没有通水电。
2. The electricity supply has been cut off at the mains .
  电的供应在电源处被切断。
3. Plug the transformer into the mains (= the place on a wall where electricity is brought into a room) .
  将变压器插入电源。
4. mains gas/water/electricity
  煤气 / 水 / 电供应系统
5. The shaver will run off batteries or mains.
  这个剃须刀可用电池或电源驱动。
6. mains drainage
  排水系统

柯林斯词典

ADJ 主要的;最重要的
Themainthing is the most important one of several similar things in a particular situation.
1. ...one of the main tourist areas of Amsterdam...
  阿姆斯特丹的主要旅游区之一
2. My main concern now is to protect the children...
  我现在最关心的就是要保护好孩子们。
3. What are the main differences and similarities between them?
  他们之间主要的异同点是什么？
PHRASE 大体上;基本上
If you say that something is truein the main, you mean that it is generally true, although there may be exceptions.
1. Tourists are, in the main, sympathetic people...
  大体说来，游客们都富有同情心。
2. In the main, children are taboo in the workplace.
  工作场所基本上禁止儿童进入。
N-COUNT (室内煤气、自来水或污水的)总管道，主管道
Themainsare the pipes which supply gas or water to buildings, or which take sewage away from them.
1. ...the water supply from the mains...
  总管道的自来水供应
2. The capital has been without mains water since Wednesday night.
  从周三晚上开始，首都就停水了。
N-PLURAL 电力线;电源
The mainsare the wires which supply electricity to buildings, or the place where the wires end inside the building.
1. ...amplifiers which plug into the mains...
  接通电源的扩音器
2. Make sure plugs are disconnected from the mains...
  确保插头与电源断开。
3. It is mains or battery powered.
  它是由电源或者电池供电的。

英英释义

noun

a principal pipe in a system that distributes water or gas or electricity or that collects sewage
any very large body of (salt) water
Synonym:briny

双语例句

I told him my main reservation about his film was the ending
我告诉他我主要是对他电影的结尾有保留意见。
The main points of the plan are as follows.
计划的要点如下。
After the second explosion, all of London's main train and subway stations were shut down
第二次爆炸后，伦敦所有的主要火车站和地铁站都关闭了。
Make sure plugs are disconnected from the mains
确保插头与电源断开。
Wallerstein's work can be separated into three main component themes
沃勒斯坦的作品可以细分成3个主要的主题。
He skirted round his main differences with her.
他避开了和她之间的主要分歧。
The capital has been without mains water since Wednesday night.
从周三晚上开始，首都就停水了。
It criticises the main contractor for seriously erring in its original estimates
它批评主要承包商在其最初估价中犯了严重的错误。
It is mains or battery powered.
它是由电源或者电池供电的。
It's bound to be the main talking point during discussions between the Prime Minister and the President.
这必然会成为首相和总统之间讨论的主要话题。