Definition
to unwind and rejuvenate in preparation for an activity
充分休息；恢復精力
Before the competition, he needs to rest up to enhance his performance.
在比賽之前，他需要充分休息以提高表現。
I plan to rest up before the long journey.
我計劃在長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後，她決定好好休息。