Batchmate
同年级同学（或同窗）；同批同学（或同窗）
🗣️ 情景例句
What's the meaning of NATO?
NATO代表什么？
How did you like last night's party?
喜欢昨晚的聚会吗？
Her mother died when she was eight years old.
她8岁时母亲就去世了。