青春就是这样脆弱到无法挽留的东西。翻译

你是要翻译英语吗?是就是这个
This is the vulnerability of youth to not be able to retain what

我给你网址，你自己翻译吧，可以翻成任何地球上人说的语言……
http://www.hao123.com/ss/fy.htm

Youth is such a thing which is so weak that even cannot be retained.