Cathetron
[电]外控式三极汞气整流管
🗣️ 情景例句
For heaven's sake stop whining.
我说你别再诉苦了。
He has more power in many ways than the President.
在许多方面他的权力比我总统还大。
He has been sick for three weeks.
他已经病了几周了。