be better at 和 be better in的用法及区别

Question

be better at 和 be better in的用法及区别

Answer 1

be better at (是 be good at 的比较级)：擅长于……； 在……方面做得好.= do better in
好像没be better in 这种用法.
He is good at maths ,but he is better at English .也数学学得好,但他英语更好.
加油!不明白再问!