Monotube
单管的, 直流的
🗣️ 情景例句
The director is insisting on a staff meeting this evening at 7pm.
主管坚持在今晚7点抹刀形职工大会。
We shall never have friends if we expect to find them without fault.
指望朋友无缺点，永远休想交朋友。
Hello. You look tired today.
你好。你今天显得有点儿累。