第1个回答 2012-10-28
never ever disappoint your friends.never ever let your friends down.
第2个回答 2012-10-28
I have seen the truth in the saying that you should never let your friends disappointed(down)
第3个回答 2012-10-31
I've come to realize that one should never let his friends down. 口语化的翻译方式,说出来要地道、顺口。希望对你有帮助。