A-team
noun/ˈeɪ tiːm/
/ˈeɪ tiːm/
[usually singular]- the best sports team in a school, club, etc.
（学校等的）最佳运动队，甲队 - a group of the best workers, soldiers, etc.
（工人、士兵等的）精英小组
Word Origin1970s: from sports terminology in which an organization's A-team is its best team.