top tier
US /tɑp tɪr/
UK /tɒp tɪər/
形容词
顶尖的, 一流的
of the highest quality or rank
示例:
•
This university is considered a top-tier institution.
这所大学被认为是顶尖学府。
•
Only top-tier athletes compete in the Olympics.
只有顶尖运动员才能参加奥运会。