An audition is a short performance given by an actor, dancer, or musician so that a director or conductor can decide if they are good enough to be in a play, film, or orchestra.
V-ERG
試鏡;讓…試演（或試唱、試音）
If you audition or if someone auditions you, you do an audition.
例句
I was auditioning for the part of a jealous girlfriend...我試演一個喜歡吃醋的女友角色。They're auditioning for new members of the cast for 'Miss Saigon' today...他們今天參加《西貢小姐》劇組招募新演員的試鏡。