当火灾发生时，不幸正遇上一阵大风。

As luck would have it, there was a sudden gust when the fire broke out.

youdao

引导学生当火灾发生时，希望有超人来扑灭火并救出火中之人。

When a big fire happen, we always hope there is a superman who can help.

youdao

引导学生当火灾发生时，希望有超人来扑灭火并救出火中之人。

When a big fire happen, we always hope there is a superman who can help.

youdao