天壤之别 - Far Cry

What he did was a far cry from what he said he was going to do.
-他的所行与所言真是有天壤之别。

Your last statement was far cry from your first story.
-你上回的说明与你原先的故事真是天壤之别。

The first automobile could run, but it was a far cry from a modern car.
-第一部车虽能跑，但是它和现代的车却有天壤之别。



---《流行英语成语》

[windofjune]

good for English learner. can you post more? pretty interesting. don'tknow how often they are used.