how where whywhen他告诉我，五年前他在大学时，为了出国而努力学习英语。

He told me that he studied English hard in the university to go abroad five years ago.

youdao

how where whywhen他告诉我，五年前他在大学时，为了出国而努力学习英语。

He told me that he studied English hard in the university to go abroad five years ago.

youdao