sigh

一声宽慰的叹息从她唇间逸出。

A ___sigh of relief escaped her lips.

我深深地叹了口气，走进了房子！

I entered the house with a deep ___sigh!

随着一声疲惫的叹息，我终于坐了下来。

With a weary ___sigh, I finally sat down.