贫富差距的英文：
poverty gap / wealth gap

参考例句：

Beware of the poverty gap trap.
小心贫富差距的陷阱。

Gap of wealth
贫富差距

Narrowing the gap between the rich and poor
缩小贫富差距

What can be done to counter the widening gap between the rich and poor in China?
针对中国贫富差距的不断拉大,我们可以做什么?

gap是什么意思：
n. 缺口，裂口；间隙；差距，分歧；空白；峡谷，深谷；间断； 不同，不一致
v. 使成缺口；裂开

The gap would be mold of the member.
缝隙将是构件的铸模。

There is no intermediary specification to fill the gap.
没有中间的规范来填补空白。

Our findings filled the gap.
我们的发现填补了这个空白。

wealth是什么意思：
n. 财产；财富；大量

Wealth that you hoard is not yours, wealth that you have given is really yours.
你囤积起来的财富并不是你的，你布施出去的财富才真正是你的。

Good health is above wealth
健康是个宝

Avarice increases with wealth
越富越贪