Definition
to unwind and rejuvenate in preparation for an activity
充分休息；恢复精力
Before the competition, he needs to rest up to enhance his performance.
在比赛之前，他需要充分休息以提高表现。
I plan to rest up before the long journey.
我计划在长途旅行之前好好休息。
After such a busy work week, she decided to rest up.
在如此忙碌的工作周之后，她决定好好休息。