Corotron
电晕管； 电晕发射装置
🗣️ 情景例句
Can you tell me about how long it'll take to get to...?
你能告诉我到……有多远吗？
You don not have to reveal your age.
你不必透露你的年龄。
They can't pick up the small pieces with their fingers.
他们用手指拿不起小零件。