She took advantage of the children's absence to tidy their rooms.

她趁孩子们不在时收拾了他们的房间。

《牛津词典》

Keeping their rooms tidy was her pleasure.

保持他们的房间整洁是她的快乐。

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Getting a son to take out the garbage once a week is considered a triumph. Most parents are content if their kids occasionally tidy their rooms.

能够让一个孩子每周倒一次垃圾就已经是谢天谢地的事情了。如果孩子能够偶尔清理他们的房间，许多家长都会感到高兴。

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