Polytypism
多型性, 多型现象
🗣️ 情景例句
Tell me about it.
说给我听吧。
The doctor is afraid there is no hope for him.
医生担忧他已经无望了。
To protect themselves from the icy water, they had to wear special rubber suits.
湖水冰冷刺骨，他们必须穿上一种特制的橡皮服以保护自己。