It means that you'll pay for what you have done sooner or later. 也就是“因果报应”的意思。

这句话出自《无间道Ⅱ》，剧中是说“出来跑，不论做过什么，迟早要还”，出来混是小混混爱说的话。 　　在《无间道》第二集中香港尖沙咀黑帮龙头大佬倪坤说的过的话，倪坤第二个儿子倪永孝(吴镇宇饰)怀念父亲，所以说这句父亲生前经常说的话。　 　 　出现在2个地方。第一个是“吴镇宇”刚刚处理完几个老大想合谋造反的阴谋，在他父亲生前最喜欢的路边摊吃夜宵时和曾志伟说的。 　　第二个是最后他死前说的。他说完“曾志伟”以为死定了，都闭上了眼，可是没想到“黄秋生”先开枪了。。。 　　都知道所谓的混不是走正道，认为做坏事会折寿，所以，在混黑时欺骗自己说是身不由己，一边做坏事求发达，一边用做坏事赚来的钱烧香拜佛搞慈善。如果感觉自己要发生不测时，没有什么解救的办法，于是就自我安慰：总有一天要还的...。以此表现出自己对当初所作一切的无奈。http://baike.baidu.com/view/2599453.htm

I want to learn chines speaking and writhing who can teach me....?

1.欠了别人，总该要还。 2.出来打拼，迟早要回家的。

HELLO, How are you today.my name is penda ,i saw your profile today and became intrested in you,i will also like to know you more,and i want you to send an email to my email address so i can give you my picture for you to know whom i am. Here is my email address ([email protected]) I believe we can move from here! I am waiting for your mail to my email address above.. (Remeber the distance or colour does not matter but love matters alot in life) yours in love, Penda.