Masterclasses
(masterclass 的复数) n. （由舞蹈、音乐等方面的名家为优秀生讲授的）高级讲习班
🗣️ 情景例句
You should use 'officer' to address a policeman.
你应该用 'officer' 来称呼警察。
One moment, please, and I'll find out what is available.
请等一等，我来查一查有什么班机。
It's a pleasure. What time is it by your watch, please?
不客气。请问，你的表几点了？