Life is not easy to come by/Life is hard-won,we should cherish it.
512大地震更让我们知道珍惜自己的生命,生命是来之不易.
512 earthquake made us aware of them to cherish life,life is not easy to come by.
所以,照顾好自己,珍爱生命,它来之不易而又易于失去.
So take care of yourself,cherish life,it is hard-won and easy to lose.