Emitron
[电] 阴极发射管
🗣️ 情景例句
And when I did,
就算我睡着了，
I want to reserve a room.
我想预订一个房间。
It seems that man was making a real effort to understand the seasons 20,000 years earlier than has been supposed.
看来人类早就致力于探索四季变迁了，比人们想像的要早20，000年。