Beat für Dummies

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 welches intended.

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Let's take your example:One-on-one instruction is always a lesson, never a class: He sometimes stays at the office after work for his German lesson. After the lesson he goes home. Notice that it made it singular. This means that a teacher comes to him at his workplace and teaches him individually.

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。

bokonon said: It's been some time now that this has been bugging me... is there any substantial difference between "lesson" and "class"?

Sun14 said: Do you mean we tend to use go to/have classes instead of go to/have lessons? Click to expand...

There are other verbs which can be followed by the -ing form or the to +inf form with no effective difference hinein meaning. Weiher this page (englishpage.net):

Barque said: This sounds a little unnatural. website Perhaps you mean he was telling the employee to go back to his work (because the employee was taking a break). I'd expect: Please get back to your work in such a situation.

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There's a difference in meaning, of course. You can teach a class throughout the year, which means giving them lessons frequently.

Regarding exgerman's Postalisch in #17, When referring to a long course of lessons, do we use lesson instead of class?

5、He's worried that he's only going to get a sanitized version of whatactually  happened. 

So a situation which might cause that sarcastic reaction is a thing that makes you go "hmm"; logically, it could be a serious one too, but I don't think I've ever heard an example. The phrase welches popularized rein that sarcastic sense by Arsenio Hall, World health organization often uses it on his TV show as a theme for an ongoing series of short jokes. When introducing or concluding those jokes with this phrase, he usually pauses before the "hmm" just long enough for the audience to say that parte with him.