Digoneutism
二抱性, 二化性
🗣️ 情景例句
And how old are you?
你几岁了？
The hippopotamus is sleeping.
河马在呼呼大睡。
Before you leave the lab, make sure the electricity is turned off and the windows are shut.
你们离开实验室前，务必要关上电源，关好窗户。