4.17

1)翻译下面的句子

一二线城市之间的贫富差距正在不断加大

The gulf of the rich and the poor between the first-tier  and second-tier cities is widening.

2)结合自己的生活、学习、工作、兴趣等，想象在什么语境下会用到这个表达。先简要描述这个场景，再造句

例子:中国政府大力支持科技创新，目的是减小与发达国家的差距

造句:China's state highly supports technological innovation aimed at narrowing the gulf between the developped countries.