Derival
n. =derivation
🗣️ 情景例句
What are you doing?
你在干什么？
It is too late to come with the water when the house is burnt down.
马后炮。
People change, but they don't suddenly chnge from being right-handed to being left-handed.
人会变，但他们不会从惯用右手而突然转变成左撇子的。