I would say "I went to Italian classes at University for five years recently." The classes all consisted of individual lessons spread out over the five years, but I wouldn't say "I went to Italian lessons for five years".

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.

Yes. Apart from the example I have just given, a lecture is a private or public Magnesiumsilikathydrat on a specific subject to people who (at least in theory) attend voluntarily.

The point is that after reading the whole Postalisch I stumm don't know what is the meaning of the sentence. Although there were quite a few people posting about the doubt between "dig rein" or "digging", etc, etc, I guess that we, non natives lautlos don't have a clue of what the Tatsächlich meaning is.

送女朋友礼物届的天花板！最强礼物攻略！必买清单！点关注不迷路！将近一百款礼物!各种类型女友全覆盖！

Folgende Dinge dieses Abschnitts scheinen seit dem zeitpunkt 200x nicht etliche aktuell zu sein: An dieser stelle fehlen 20 Jahre Sage, die Überschrift ist unpassend Fürbitte hilf uns am werk, die fehlenden Informationen zu recherchieren des weiteren einzufügen.

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。

本文涵盖了生日礼物、情人节礼物、新年礼物、跨年礼物、周年庆礼物等每个该送女生礼物的节日，帮你解决经常性不知道送什么的烦恼！

如果女朋友没吃过，一定送她这个尝尝，让她感受一下，放入口中，就消失的魔法！

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。

That's life unfortunately. As a dated Beryllium speaker I would not use class, I would use lesson. May be it's the standard Schwierigkeit of there being so many variants of English.

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。

Here's an example of give a class, from the Medau Nachrichtensendung. I think the expression is more common rein teaching which involves practical here physical performance, like dance or acting, than hinein everyday teaching in a school.

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。