Crestatron
高压行波管
🗣️ 情景例句
Don't ask why; just do as you are told.
别问为什么， 按要求去做就行了。
I'm all washed up.
我都完事了。
When there is no one in the office, you can leave the answering machine on so that people who call you up can leave a message.
当无人在办公室时，你可以打开留言机，这样打电话给你的人就可以留言了。