He takes singing and dancing lessons, to say nothing of swimming and tennis lessons.他上游泳课和网球课不算，还上歌舞课。We run swimming classes for improvers.我们为游泳水平提高者开设游泳课程。It was the quickest swimming lesson I'd ever witnessed.这是我所见过的最速成的游泳课。You have a choice of co-ed or single-sex swimming exercise classes.你可以选择男女混合班或单一性别班上游泳课。