main

主要的、首要的、最重要的

The main reason for the delay was the bad weather.

延誤的主要原因是天氣不佳。

全力的、竭力的舊式

He pulled the rope with his main strength.

他用盡全力拉那條繩子。

幹管、總管、主管道

A burst water main flooded the whole street last night.

昨晚一條自來水幹管破裂，淹了整條街。

市電、電源英式，常用複數

Unplug the heater from the mains before you clean it.

清理暖氣機之前，先把插頭從電源拔掉。

大體上、基本上、總的來說

In the main, the customers seem happy with the new menu.

大體上，客人似乎對新菜單很滿意。