Edit: this seems to be the consensus over at the Swedish section of WordReference back hinein Feb of 2006 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 https://youtu.be/T0zWXvhEQwo?si=wNc6ihu97ShtIl7u