Diac
两端交流开关元件
🗣️ 情景例句
I don't think we should see each other any more.
我觉得以后咱们还是别再见面了。
A book is the same today as it always was and it will never change.
一本好书今天如此，将来也如此，永不改变。
Yes, it is.
是啊！