a mixed bag

基本解释

Dreams are a mixed bag.
梦其实就是一个大杂烩。
To the historian, the volume in which Millikan's paper appeared shows that physics in America was still a mixed bag.
但是对于科学史学者来说，包含了密立根文章的这卷刊物仍然表明当时美国的物理研究是个大杂烩。
FOR those who believe that exchanges are strategic national assets to be protected from foreign marauders, the past week has been a mixed bag.
交易所是战略上的国有资产，应该加以保护不受外人抢夺，对于那些持有这个想法的人来说，过去一周好坏参半。

Mpyisi says the union is a mixed bag of failed states, countries struggling with democracy, and success stories.

Over time they've acquired a mixed bag of financial assets, including some once-hot tech stocks.
FORBES: The 2005 Investment Guide
But the results would surely be a mixed bag: some good, some useless and some terrible.
FORBES: State Health Care Flexibility: The Good, the Bad and the Broke
The China data can be read as a mixed bag for gold and silver.
FORBES: P.M. Kitco Metals Roundup: Comex Gold Ends Slightly Up in Quieter Trading; Bulls Work to Stabilize Market