Quadratron
热阴极四极管
🗣️ 情景例句
I Wonder whether they will arrive on time.
我也不知道他能不能准时到。
The passengers were scared to death as the taxi whizzed along.
出租车风驰电掣般地驶着，乘客吓得要命。
Do you direct comedies?
您导演喜剧吗？