here is part of a letter you receive from your friend who is a first _year college student 什么意思

Here is part of his talk.为什么这里的part前面不加a?part不是可数名词么? 英语翻译How important is keeping healthy to you A group question here part of their discussion here is part of a letter you receive from your friend who is a first _year college student 什么意思 Here‘s part of their discussion.为什么不用冠词a? Here is a book of What letter is a part of head? What letter is a part of vegetable? “What letter is a part of body? Failure is a part of life短文 Which letter is a part of head Which letter is a part of body? Tibet IS a part of China England is a part of the loneliness is a necessary part of life. Whichanimalis part of a computer here's the part i don't understand怎么翻?是 here 's=here is 为什么是 the part ,不是 a part is part of 和is a part of 的区别?Filing the clippings is part of the daily work of a secretary.此句话中应该是 is part of 还是 is a part of Trendy teen is in a fun part of town .是什麽意思?part of 是什麽?当代人