Regarding exgerman's Postalisch hinein #17, When referring to a long course of lessons, do we use lesson instead of class? In another situation, let's say I am at a party. If I want to invite someone to dance, I should say"start dancing". 知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 Follow along https://youtu.be/T0zWXvhEQwo?si=wNc6ihu97ShtIl7u