有没有变化格式要求,否则有很多种答案,比如：
He got a letter from his uncle last week,and the letter has more than 10000 words.
= He got/received a letter with over 10000 words (in it) from his uncle last week .
= He got/received a letter from his uncle last week,which has more than 10000 words.
注：（ ）表示其内部分可以省略不写.