Triac
n. 三端双向可控硅开关元件\\n[计] 三端可控硅器件
🗣️ 情景例句
That's my boy!
好儿子！
I asked him to play with me, but he wouldn't.
我请他和我玩，但是他不肯。
No one knows how long it will last.
谁也不知道会持续多久。