Polyad
几个紧密相关的零件或元件的组合
🗣️ 情景例句
Don't lose your cool.
要沉住气。
Can you finish your work ahead of time?
你能提前完成工作吗？
After a long period of rain the river may overflow its banks.
久雨这后，河水会泛滥成灾，