Dear XXX: I didn't your previous email. Would you please send it again. In case this situation happens again in the future, would you please also copy your emails to XXX (你同事)? Thanks XXX 别太卑躬屈膝!有个什么好Sorry的?!
Dear Sir, March 15th, 2011 Your letter dated ..... has bee received with thanks. But it's a pity that I failed to received the letter your sent me on ...... I wonder i...