名词，句子，动词短语,动词不定式,名词短语可作主语What I like best(句子作主语) is fishing You(名词作主语)'re joking Taking regular exercise（动词短语） is good for health To take regular exercise（动词不定式） is good for health Lack of exprience(名词短语) is the main weakness
这段话 我还是不懂啊 怎么那么多is 的 谁再解释解释
【文字不要写在英文后面哦！】