Lubrification
润滑性
🗣️ 情景例句
Don't count your chickens before they hatch.
小鸡孵出之后再算数。
You won't believe it,but it was really cheap.
你不会相信的，但这条裤子确实很便宜。
Until we are intelligent as to its laws and varieties,
直到我们理解了风俗的规律性和多样性，