n. 试验, 试用, 选拔赛

Tryout \Try"out\, n.
1. a test of the performance capability of a person, to
ascertain fitness for a particular task; in sports, a test
by which the fitness of a player or contestant to remain
in a certain class is determined.
[Webster 1913 Suppl. +PJC]

2. (Theater) one or more performances of a play prior to the
official opening, held at a location outside of the city
where it is to be formally presented, conducted for the
purpose of determining audience response or ascertaining
weaknesses needing correction.
[PJC]