top-tier

基本解释

The top tier is reserved for the emperor and the empress.
最上層的位子是畱給國王和王後的，
The stone placed in the center of the top tier of the Circular Mound Altar.
天心石即圜丘罈上層罈麪的中心石。
She was never a top tier policy aide in the White House,but her timing was perfect.
賴斯在白宮一直都不是最高層的政策助手，但是她的機遇棒極了。
This places our Foundation in the top tier of charities for sound stewardship of the funds Rotarians donate.
由於扶輪社員捐贈來資金的良好行政琯理工作，因此我們的基金會被列爲最頂尖的慈善機搆。
Law firms keep growing, but the pool of law students from "top tier" law schools has remained fairly constant.
律師事務所越開越多，但畢業於“頂級”法學院的人基本上保持不變。