main

chief, principal, main, major, leading, capital, foremost, primary

名词 main:

1. any very large body of (salt) water
   同义词：briny
2. a principal pipe in a system that distributes water or gas or electricity or that collects sewage

形容词 main:

1. most important element
   同义词：chief, primary, principal
2. (of a clause) capable of standing syntactically alone as a complete sentence
   同义词：independent
3. of force; of the greatest possible intensity

1. The speech was most disappointing; it skirted round all the main questions.
   这篇演讲非常令人失望，它回避了所有主要的问题。
2. The main road was flooded so we had to go round by narrow country lanes.
   公路干线遭水淹没，我们只得择乡间小径绕行。
3. By defeating their main competitor this firm has cornered the wheat market.
   这家公司击败了主要的竞争对手而垄断了整个小麦市场。
4. The teacher asked me to note down the main points of the speech.
   老师要求我把演说的要点记下来。
5. I turned the gas off at the mains before I went out.
   我出门之前，把煤气的总阀关掉了。

main

adj.（形容词）
Most important; principal.See Synonyms at chief
最重要的；主要的参见 chief
Exerted to the utmost; sheer:
发挥到最大程度的；绝对的：
例句：
by main strength.
用全部力量

Nautical Connected to or located near the mainmast:
【航海】 和主桅有关的或者在主桅附近的：
例句：
a main skysail.
主桅天帆

Grammar Of, relating to, or being the principal clause or verb of a complex sentence.
【语法】 主句的、与之有关的或主句本身或复合句中的动词
Obsolete Of or relating to a continuous area or stretch, as of land or water.
【废语】 连绵不断的水面或土地的区域或空间的或与之有关的
n.（名词）
The chief or largest part:
主要的或最大的部分：
例句：
His ideas are, in the main, impractical.
总体来说，他的想法是不切实际的

The principal pipe or conduit in a system for conveying water, gas, oil, or other utility.
主要管道：输送水、天然气、石油系统中的主要管道或沟渠或其他公用事业设备
Physical strength:
体力：
例句：
fought with might and main.
竭尽全力地战斗

A mainland.
大陆
The open ocean.
公海
Nautical
【航海】
A mainsail.
主帆
A mainmast.
主桅

来源：
Middle English
中古英语
from Old English môgen [strength] * see magh-
源自 古英语 môgen [力量] *参见 magh-