很多人试了这个方法，没有效果，原因是因为他们重复的次数不够多。

Many people try this method, no effect, because the number of repeat them enough.

youdao

很多人试了这个方法，没有效果，原因是因为他们重复的次数不够多。

Many people try this method, no effect, because the number of repeat them enough.

youdao