差距

两人的收入有差距。

liǎng rén de shōurù yǒu chājù.

There is a disparity in their income

这两个城市的经济发展水平存在差距。

zhè liǎng gè chéngshì de jīngtíng fāzhǎn shuǐpíng zài chājù.

There is a difference in the economic development level of these two cities