有些事是单向不可逆，有些人是唯一不可替代的。

 

　　Some things are irreversible, some people are the only irreplaceable.

 

　　当全世界约好一起下雨，让我们约好心里一起放晴。

 

　　When the whole world is about to rain, let us together to clear up about a good heart.