Suppose you won a translation contest and your friend, Jack, wrote an email to congratulate you and ask for advice on translation. Write him a reply to
　 1) thank him, and
　 2) give your advice.
　 You should write about 100 words on the ANSWER SHEET.
　 Do not sign your own name at the end of the letter. Use Li Ming instead.
　 Do not write the address. (10 points)