Polyad
几个紧密相关的零件或元件的组合
🗣️ 情景例句
By arranging with the public schools
首先， 从公立学校开始
I've had enough.
我已经吃饱了。
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。