swimming是动词，没有可不可数。

v.游水;游泳;游泳(作为娱乐);游;游动

swim的现在分词

记忆技巧：swim 游泳 + ing 行为，状态，情况 → 游泳

相关介绍

How often do you go swimming?

你多久去游泳一次？

People were swimming in the ocean despite the hurricane warning.

尽管有飓风警报，人们仍然在大海里游泳。

Which is better exercise ─ swimming or tennis?

游泳和网球，哪种运动比较好？

They went swimming in spite of all the danger signs.

他们无视所有那些危险水域告示牌，还是去游泳了。