介绍:
I completely understand. it doesn't matter.
A:Hey! You finally made it.
嘿！你终于来了。
B:I'm terribly sorry about being lat.
我迟到了，真的很抱歉。
A:What kept you?
什么事把你耽搁了?
B:I was caught up in terrible traffic.
我堵车了。
A:Oh,I completely understand. it doesn't matter
我完全理解，没关系。
B:I really appreciate your understanding.
谢谢你的理解。
