Kilotron
整流管
🗣️ 情景例句
How are you doing, Richard?
现在怎么样， Richard？
Youth is a blunder; manhood a struggle, old age a regret.
青年冒失莽撞；成年发奋图强；老年遗憾懊丧。
I'm tired of working all day.
整日工作使我厌烦。