He had seen them come out and get into the unmarked police car.

他看见他们出来了，进了没有标志的警车。

《柯林斯英汉双解大词典》

In fact it's an unmarked police car.

其实，这是一辆便衣…警车。

youdao

In fact it's an unmarked police car.

其实，这是一辆便衣…警车。

youdao