Cathetron
[电]外控式三极汞气整流管
🗣️ 情景例句
For some reason, I couldn't get a handle on it.
因为某些原因， 我就是开不了窍。
With only a few facts, Holmes could hypothesize the explanation.
仅凭少许的事实，福尔摩斯就能推理该事件了。
How do you do?
你们好！