Triacs
三端双向可控硅元件
🗣️ 情景例句
The pollution in Beijing is alarming.
北京的污染给人们敲起了警钟。
According to the latest census,our population has increased.
根据最近的人口普查，我们的人口增加了。
and makes them resolve that in future they will not talk to their parents about the places or people they visit.
决心以后不再向父母讲述去过的地方和见过的人。