exercise为名词时,在句子里有形容词的情况下,才为名词.列句：Swimming is one of the healthiest forms of exercise exercising则是个动名词,做主语.但是exercise本身就有名词的含义,所以exercising可以用,也可以不用.
名词的exercise和动名词的exercising有什么区别啊
exercise为名词时,在句子里有形容词的情况下,才为名词.列句：Swimming is one of the healthiest forms of exercise exercising则是个动名词,做主语.但是exercise本身就有名词的含义,所以exercising可以用,也可以不用.