John and his brother differ in personality even if their differences in age are not significant.
尽管约翰和他哥哥在年纪上相差不大，但他们的个性却不相同。
John and his brother differ in personality even if their differences in age are not significant.
尽管约翰和他哥哥在年纪上相差不大，但他们的个性却不相同。