supporting role

例句：

1. 1. The doctor's assistant played a crucial supporting role in the surgery.
   医生的助手在手术中扮演了至关重要的支持角色。
2. 2. In the film, the supporting actor was a standout performer.
   电影中的配角表现突出。
3. 3. The team needs a backup player to fill in for their injured star player.
   球队需要一名替补球员来替代受伤的明星球员。