Glaciations
(glaciation 的复数) n. 冻结成冰, 冰川作用
🗣️ 情景例句
Yes, I remember. You were a great help.
是的， 我记得。你帮了个大忙。
When did you graduste?
你什么时候毕业的？
Sometimes we aren't able to get into every building because there are too many steps.
有时我们并不能进每栋楼房，是因为楼梯太多了。