我的朋友是那部电影里的临时演员。

A friend of mine is an ___extra on that movie.

新项目的剧团包括了演员、技术人员和临时演员。

The theater troop for the new project included actors, technicians, and ___extras.

她在几部电影中担任临时演员以获取经验。

She worked as an ___extra in several films to gain experience.