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。 As we've been saying, the teacher could also say that. The context would make clear which meaning was intended. 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。 It is not idiomatic "to give" a class. A class, rein this sense, is a collective noun for all the pupils/ the described group https://sergiomtzgl.59bloggers.com/34193121/rhythm-optionen