The exercise should be strenuous enough to leave your heart beating faster, and you should feel slightly out of breath.

艰苦的工作应足以让你的心跳加快，你应该感到稍微出一口气。

youdao

The exercise should be strenuous enough to leave your heart beating faster, and you should feel slightly out of breath.

艰苦的工作应足以让你的心跳加快，你应该感到稍微出一口气。

youdao