Which for you?是啥意思?

Which for you?是啥意思? we have received your letter of May 16,2002,for which we thank you.中的for which相当啥意思.1for which 怎么用,近义词有.补充：这是我学商务函电中的一句话.感觉函电语法挺复杂的.跟日常英语不同,难度大点.请 Which bird do you like 啥意思 英语翻译For example：You must die for good ：you must do for goodSth for good 是啥意思 Which word do you use when you ask for something 这是新概念英语中的一句话,我要的是这句话的意思， I haven't seen you for ages 是啥意思? she is free style just for you 是啥意思 how do you study for a test是啥意思? she is free style just for you 是啥意思 I will be there for you是啥意思 What can i do for you?是啥意思? what do you do for your job?是啥意思 I could be perfect for you 是啥意思? Which one do you like best?这句话是啥意思呀?有急用! 尤其是 rise to 啥意思Several studies suggest that challenging situations in which you're able to rise to the occasion can be good for you. Which school do you study in是什意思 have you decided yet which book to write about for English class?的意思 Do you know the reason why/for which he didn't come?这句话的意思?