schoolmate /ˈskuːlˌmeɪt/

• 1. 

  N-COUNT A schoolmate is a child who goes to the same school as you, especially one who is your friend. 同学 [英国英语] [oft with poss]

  例：

  He started the magazine with a schoolmate.

  他和他的一个同学创办了那份杂志。