Semitriangular
半三角(形)的
🗣️ 情景例句
The bright young man can get ahead quickly in the tourist industry.
这位聪明的年轻人在旅游世界很快获得成功。
Teach your grandmother to suck eggs.
班门弄斧。
Between 8:00 and 9:00.
8：00－9：00之间吧。