top tier

基本解释

The top-tier scientists are very well funded and if you do not position yourself well, they may not want to collaborate with you.
江总说："顶级科学家均有很好的经费支持，如果你不能定位好自己，他们可能不愿与您合作。
Several top-tier funds of funds say they have seen interest from CIC.
多家顶级的基金的基金表示，中投公司已向他们表示出兴趣。
But its rivals, the hungry two other top-tier consultancies Bain & Co. and the Boston Consulting Group, are surely gleeful today, and will get to work seizing whatever advantage they can tomorrow.
但其对手，另两个欲求不满的顶尖咨询机构贝恩顾问公司和波士顿咨询集团，眼下无疑是欢欣鼓舞的，而不管未来它们能获取到什么样的好处，现在都该着手去争取了。

Even as top-tier Japanese institutions go bankrupt or post huge losses, Orix has remained consistently profitable.
FORBES: The sun also rises
Now I agree there will be excitement for top-tier IPOs like Facebook, Zynga and perhaps Twitter.
FORBES: An IPO Boom with 9%+ Unemployment?
Top-tier hedge funds roam the Internet all day long, looking for company-generated tidbits with investor relevance.
FORBES: Netflix's Win Over SEC Will Test Investors And Social Media