Regarding exgerman's Auf dem postweg rein #17, When referring to a long course of lessons, do we use lesson instead of class? 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。 You wouldn't say that you give a class throughout the year, though you could give one every Thursday. That's life unfortunately. As a dated Beryllium https://youtu.be/T0zWXvhEQwo?si=wNc6ihu97ShtIl7u