Sedimentogenesis
沉积物形成作用
🗣️ 情景例句
How do you spell it?
如何拼写？
How long will the sale last?
折价销售多久？
Meanwhile, a number of university students have volunteered to drive buses while the strike lasts.
与此同时，有一部分大学生自愿在罢工期间驾驶公共汽车。