I would actually not say this as I prefer "swimming," but it doesn't strike me as wrong. I've heard people say this before. 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。 Regarding exgerman's Auf dem postweg hinein #17, When referring to a long course of lessons, do we use lesson instead of class? ) https://sexkontakte75520.theblogfairy.com/32951100/top-richtlinien-rhythm