/'rɒstə(r); `rɑstɚ/
n (esp US) (esp in the army, etc) list of names showing duties to be performed and the times at which those named are to perform them （尤指军队等的）值勤人员名单.

v [Tn] (esp US) place (sb) on a roster 将（某人）列入值勤人员名单中
*proposals for more flexible rostering 较灵活的值勤安排建议
* I've been rostered to work all weekend! 给我安排整个周末都要值班!

The following is a list of players, both past and current, who appeared at least in one game for the Houston Astros National League franchise (1965–present), also known previously as the Houston Colt .45's (1962–1964).