larger, more important, or having more influence than others of the same type

The main thing is not to worry. 最重要的是不要担心。

One of the main reasons I came to England was to study the language. 我到英格兰的主要原因之一是学习语言。

You'll find the main points of my proposal in the report. 你们可以在这份报告中看到我计划的要点。

Our main aim/objective is to improve the company's productivity. 我们的主要目的是提高公司的生产力。

The main problem is a lack of resources. 主要问题是缺少资金。

My main concern about moving to San Fransisco is the cost of housing. 我对移居旧金山的主要担忧是房价。

be someone's main squeezeidiom US old-fashioned informal 是（某人的）情人

a large pipe that carries water or gas, or a wire carrying electricity, from one place to another, to which a house can be connected

a gas main 煤气总管

The severe cold caused a water main to burst and flood the street. 严寒使总水管爆裂，水漫街道。

the system of pipes or wires that carry water or electricity into a house, or the pipes that carry sewage away from a house

The house isn't on the mains. 这座房子尚未接上管道系统。

They bought a house with no mains supply. 他们买了一套没有通水电的房子。

mains electricity 供电系统的电力

Not all the houses in the village are connected to the water mains.

There are many miles of sewage mains that are so old they are beginning to fail.

the place at which outside pipes or wires carrying water, electricity, etc. connect with the system inside a house or building

Switch off the electricity at the mains before starting work. 工作前要先关闭总电源。

I struggled to find the mains switch.

Make sure you have turned the water off at the mains.

The mains tap is located under the sink.

Turn the electricity back on at the mains.

generally or mostly

Her friends are teachers in the main. 她的朋友基本上都是老师。