When I arrived, he wasn't here. He must have left early.

我到这儿的时候他已不在了。他一定早走了。

youdao

When I first saw them, I thought someone left them here.

我刚看到的时候，还以为是随便掉在这里的呢。

youdao

When I first saw them, I thought someone left them here.

我刚看到的时候，还以为是随便掉在这里的呢。

youdao