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。 Actually, they keep using these two words just like this all the time. In one and the same text they use "at a lesson" and "rein class" and my students are quite confused about it. Also to deliver a class would suggest handing it https://ficken87642.blogoscience.com/40026808/eine-Überprüfung-der-dance