Corotron
电晕管； 电晕发射装置
🗣️ 情景例句
Oh, I'm sorry Susan isn't here.
啊 可惜Susan不在。
I asked him to paint it for me, but he wouldn't
我请他帮我油漆，但是他不肯。
The demand for our products has kept rising.
要求定购我们产品的人越来越多。