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
I'm concerned.
我很担心。
I don't seem to have any luck today.
我今天运气不好。
He's awful!He telephoned me four times Yesterday, and three times the day before yesterday.
他讨厌透了！他昨天给我打了4次电话，前天打了3次。