Cathetron
[电]外控式三极汞气整流管
🗣️ 情景例句
What I really want is the chance to learn some advanced methods of management.
我真正希望的是有机会学到一些先进的管理方法。
By the street of Bye and bye one arrives at the house of Never.
迁延因循，一事无成。
She played basketball after school, and then walked home.
放学后她打了篮球，然后步行回家。