七下英语：You need to brush your teeth after eating to have good teeth,

题目

七下英语：You need to brush your teeth after eating to have good teeth,
请告诉我这个句子中所有知识点和“to have good teeth是不定式表示目的状语”是什么意思?以及如果一个句子中,出现了三个实义动词,后两个是不是都加ing或变为动词不定式?

答案