而尤其是大学生们看起来似乎总是满怀热情，很难被劝退。

College students especially don't seem to have lost any enthusiasm for getting out there.

你能忽略你并不喜欢的想法而去实践的越多，你越能学会让它不再劝退你。

The more you practice ignoring the thoughts you don't like, the more they'll learn it's no use trying to persuade you.

他们对19岁以下的顾客进行劝退，让他们到了能决定自己是否要永久地改变容颜的年龄再来。

Patients younger than 19 are told to return when they are old enough to make a decision about a permanent change to their looks.