他们可能是军队中的便衣。

They might have been soldiers in civvies.

《柯林斯英汉双解大词典》

这条街上每天都有几个便衣警察。

There are several fly cops on the street every day.

youdao

一个便衣侦探搭乘火车旅行。

A plainclothes detective travelled on the train.

youdao

几个便衣在街拐角处等待着。

Several plainclothes men were waiting about round the street corner.

youdao

他们是不带武器的便衣警察。

They are unarmed plain-clothes men.

youdao

其实，这是一辆便衣…警车。

In fact it's an unmarked police car.

youdao

人群中有穿着便衣的警察。

There were policemen in plain clothes in the crowd.

youdao

我知道他是个便衣警察。

I know he is a plain-clothes copper.

youdao

一组便衣警察进入住宅。

A group of plainclothes police went into the house.

youdao

在此同时，其余的便衣警员也到达了现场。

Meanwhile, the other non-uniformed policemen arrived.

youdao

在此同时，其余的便衣警员也到达了现场。

Meanwhile, the other non-uniformed policemen arrived.

youdao