how often释义：

多长时间一次

例句：

How often do you go swimming?

你多久去游泳一次？

how many times释义：

多少次（歌曲名）

例句：

As a kid, I loved to watch cartoons, but no matter how many times I asked to watch them, my parents would not let me.

当我还是个孩子的时候，我喜欢看动画片，但是无论我多少次要求要看动画片，我的父母都不让我看。