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ADJ
主要的;最重要的
The main thing is the most important one of several similar things in a particular situation.
例句
...one of the main tourist areas of Amsterdam...
阿姆斯特丹的主要旅游區之一
My main concern now is to protect the children...
我現在最關心的就是要保護好孩子們。
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PHRASE
大體上;基本上
If you say that something is true in the main, you mean that it is generally true, although there may be exceptions.
例句
Tourists are, in the main, sympathetic people...
大體說來，游客們都富有同情心。
In the main, children are taboo in the workplace.
工作場所基本上禁止兒童進入。
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N-COUNT
(室內煤氣、自來水或污水的)總管道，主管道
The mains are the pipes which supply gas or water to buildings, or which take sewage away from them.
例句
...the water supply from the mains...
總管道的自來水供應
The capital has been without mains water since Wednesday night.
從周三晚上開始，首都就停水了。
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N-PLURAL
電力線;電源
The mains are the wires which supply electricity to buildings, or the place where the wires end inside the building.
例句
...amplifiers which plug into the mains...
接通電源的擴音器
Make sure plugs are disconnected from the mains...
確保插頭與電源斷開。