我只好用了一次醋酸氟轻松软膏，一次就好了。

I had to use an acetate fluocinolone ointment, one just fine .

这世界不在意你跌倒几次，只要你跌倒的次数比你重新站起来的次数少一次就好。

The world doesn't care how many times you fall down as long as it's one fewer than the number of times you get back up.

这意味着你不需要每周都去加油，两周一次就好了。

That means you'll only have to fill up every two weeks instead of every week.

疯狂的事情经历一次就好，比如翻越千山万水的去看望一个人。

Undergoing a crazy thing like, for example, over the thousands of miles to see a person.