You can't improve your past,

but you can improve your future.

Once time is wasted , life is wasted.

你不能改變你的過去，但你可以改善你的未來。

一旦時間浪費了，生命就浪費了。

Keywords:  You   can't   improve   your   past,   but   you   can   improve   your   future.     Once   time   is   wasted   ,   life   is   wasted.