Triacs
三端双向可控硅元件
🗣️ 情景例句
My name is Wang Feng and I'm calling to cancel plane ticket.
我叫王峰，我想取消我预定的飞机票。
I'd like something light, please.
请给我一点清淡的东西吃。
Most of North and South China will have a cold wet day.
华北、华南大部分地区将寒冷潮湿。