But what if it's not a series of lessons—just regular online Spanish one-to-one lessons you buy from some teacher; could be one lesson (a trial lesson), could be a pack of lessons, but not a parte of any course.

If the company he works for offers organized German classes, then we can say He sometimes stays at the office after work for his German class. After the class he goes home.

这款蜂蜜的好处是分条装的，独立包装，每天给包里装上几袋，随时随地，即开即食，简直是方便的不得了。

Die genaue Zeit außerdem der Ort, an dem „chillen“ erstmals in diesem Zusammenhang verwendet wurde, sind nicht fehlerfrei bekannt. Es wird jedoch soweit angenommen, dass der Begriff hinein den 1990er Jahren populär wurde, insbesondere hinein den Vereinigten Staaten. Von dort aus verbreitete er zigeunern rein der Popkultur und schließlich in der allgemeinen Sprache.

It can mean that, but it is usually restricted to a formal use, especially where a famous expert conducts a "class".

Hinein the 1990 dance hit by Kohlenstoff&Kohlenstoff Music Factory "Things That Make You Go Hmm", (lyrics here), the narrator is perplexed at the behavior of his girlfriend, World health organization attempted to entrap him with another woman to prove his fidelity, and his best friend, whom he suspects has betrayed their friendship by impregnating his wife.

There may also be a question of style (formal/conversational). There are many previous threads asking exactly this question at the bottom of this page.

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

前调：橘子、苹果、木兰，中调：牡丹、茉莉、白醋栗，后调：檀木香、琥珀、麝香。

This sounds a little unnatural. Perhaps you mean he welches telling the employee to go back to his work (because the employee was taking a break). I'durchmesser eines kreises expect: Please get back to your work rein such a situation.

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

As I always do I came to my favourite Talkshow to find out the meaning of "dig in the dancing queen" and I found this thread:

Melrosse said: I actually welches thinking it welches a phrase rein the English language. An acquaintance of Pütt told me that his Canadian teacher used this sentence to describe things that were interesting people.

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。