有成百上千的毕业生在争夺很少的工作机会。

There are hundreds of graduates ___chasing very few jobs.

我是个老傻瓜，追逐着一个荒唐、脆弱的梦想。

I was an old fool, ___chasing a ridiculous, flimsy dream.

他正在不懈地追求工作上的晋升。

He is tirelessly ___chasing a promotion at work.