Polytypism
多型性, 多型现象
🗣️ 情景例句
Mike and I had a hamburger at the diner. Mike
和我在火车厢餐厅那里吃了汉堡。
He that has no children knows not what is love.
没有孩子的人，不懂什么叫爱。
Good idea! That is much better than watching a bad TV programme!
好主意！这比看破电视节目要好多了。