swim是动词,而swimming则是名词,表示游泳这项运动。
e.g.
I
usually
swim
a
few
laps
as
warm-up
during
practices.---我一般都会在训练中先游几圈作为热身。
My
hobbies
are
painting
and
swimming.---我的兴趣是画画和游泳。
注:swim的现在进行时同样是swimming,不要把它和作为名词的swimming搞混了。
e.g.
He
is
swimming
right
now.---她现在在游泳。