to sleep in order to recover from tiredness or sickness
通过睡觉来恢复疲劳或疾病 (tongguo shuijiao lai huifu pilao huo jibing)
"He drank too much and needed to sleep it off."
"他喝得太多了，需要睡一觉来恢复。" (ta he de tai duo le xuyao shui yi jiao lai huifu)
to establish a standard or example for future actions
to complete a form by providing information
To be in a situation that is too difficult to understand or...
Don’t become discouraged.
to happen as expected
at the forefront of innovation or technology
