他们离开车站时，天正在下雨。（when）的翻译：They left the station, it was raining. （when）什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

They left the station, the day it was raining. (When)

They left the station, it was raining. （when）

When they leave the station, the day is raining.(when)

When they left the station, raining days. (When)

They left the station, it was raining. （when）