There is always a gap between ideal and reality.

理想和现实总是有差距的。

youdao

In a society, basic concepts of value should be the union of ideal and reality.

一个社会的基本价值取向应该是理想与现实的统一，是既可欲又可行的。

youdao

In the Background of times, it exists a very greatly distance of between ideal and reality.

在当前的时代背景下，理想与现实之间总是具有相当大的一段距离。

youdao

And I think, unfortunately, Katrina revealed that there's a gap between the ideal we have as a country and the reality that people are living every day in places like the Ninth Ward of New Orleans.

NPR: Sen. Barack Obama on Poverty and Katrina

It forms a perfect medley of sand, sun and sea and is an ideal spot to slip away from reality.

BBC: Swimming with sharks in the Philippines

This ideal is a far cry from reality for many UNESCO member states and hence UNESCO-UNEVOC gives priority in its work to those with the greatest need: developing nations, economies in transition and those in a post-conflict situation.

UNESCO: ALADIN By Type of Parent Organization