Polymorphy
多晶型现象
🗣️ 情景例句
When my grandpa is in a bad mood, he's grouchy with everyone.
爷爷脾气坏的时候，对所有的人都不满意。
Would you mind getting together sometime?
你可以找个时间大家一起聚聚吗？
No, not very. You need a driving permit. Have you got one?
不，不很贵。你需要一个驾驶执照。你有没有？