WENIG BEKANNTE FAKTEN üBER CHILLOUT.

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 Liedertext they use "at a lesson" and "hinein class" and my students are quite confused about it.Yes. Apart from the example I have just given, a lecture is a