difference前面用什么冠词

前面用冠词the，例如：

1、She found it difficult to get on with her， possibly because of the difference in their ages.她觉得很难与她相处，这可能是因为她们年龄上的差距。

2、When they had married， six years before， the difference in their ages had seemed unimportant.他们6年前结婚时，年龄的差距似乎并不重要。

前面的冠词不同 一个是a 一个是an。difference是指差异、不同，也有影响的意思，influence就只有影响的意思了。