2N-COUNT 名单;花名册;登记表;运动员名册(尤用于美国英语中) A roster is a list, especially of the people who work for a particular organization or are available to do a particular job. It can also be a list of the sports players who are available for a particular team, especially in American English. 名单;花名册;登记表;运动员名册(尤用于美国英语中)
The Amateur Softball Association's roster of umpires has declined to 57,000. [+ of]
业余垒球协会的裁判员名单上的人数已经减少到了57,000名。
From the studio's roster of leading men, Robert Walker was an obvious choice to play the part.