他长叹一声；一声很长很长很长的叹息。

He heaved a deep sigh; a long, long, long sigh.

youdao

他发出了一声疲倦的长叹。

He gave a long, weary sigh.

youdao

他长叹一声。

He drew a deep sigh.

youdao

他长叹气一声。

She gave a long sigh.

youdao

当她抬脚上门槛时，汤姆长叹了一声。

Tom heaved a great sigh as she put her foot on the threshold.

youdao

当她抬脚上门槛时，汤姆长叹了一声。

Tom heaved a great sigh as she put her foot on the threshold.

youdao