当我到达那儿时，火车已经离开了。

When I got there, the train had left.

youdao

当我到达那儿时，我发现工作已被做完了。

When I got there, I found the work to have been finished.

youdao

当我到达那儿的时候，公共汽车已经开了。

By the time I got there, the bus had already gone.

youdao

当我们到达那儿时，公共汽车已经走了。

By the time we got there, the bus had already gone.

youdao

当我们到达事故的现场时，我们发现鲁鲁并不在那儿。

When we arrived at the scene of the incident, we found Lulu was not there.

youdao

昨天当我们到达那儿时，他们已工作了好几个小时。

They had been working for several hours before we went there yesterday.

youdao

昨天当我们到达那儿时，他们已工作了好几个小时。

They had been working for several hours before we went there yesterday.

youdao