Batchmate
同年级同学（或同窗）；同批同学（或同窗）
🗣️ 情景例句
Good night, Son.
晚安， 儿子。
Shall I come by early to help you get ready?
我提早一点来，帮忙准备宴会好吗？
Why on earth didn't you tell me the truth?
你到底为什么不跟我说实话？