表示原因，问为什么要去动物园呢？

Why did she go to the zoo?

youdao

吉姆不在，他没有人说话了。(表示原因)。

With Jim away, he had no one to talk with.

youdao

见到你我们非常高兴。（作状语，表示原因）

We are overjoyed to see you.

youdao

我们将去车站迎接客人。（作状语，表示原因）

They will go to the station to meet the guest.

youdao

在玛丽的帮助下，他肯定会成功的。（表示原因）

With Mary to help him, he is sure to succeed.

youdao

由于旅途劳顿，他们很快就睡着了。(作状语，表示原因)。

They soon fell asleep, exhausted (for they were exhausted) by the long journey.

youdao

由于旅途劳顿，他们很快就睡着了。(作状语，表示原因)。

They soon fell asleep, exhausted (for they were exhausted) by the long journey.

youdao