她说数学就像自己的朋友一样，每当她做出数学题目的时候，她就感到很快乐，当然，如果做不出来，她会觉得有点儿痛苦。She said math is like a friend to her. Whenever she solves a math problem, she feels very happy. Of course, if she can’t solve it, she feels a bit frustrated.