由影视片中精彩镜头剪辑而成的短片，用于审查、预告、宣传等trailer

• 看电影前要先看媒体的广告介绍或片花广告才作决定。

  Before watching a film, one must watch adverts and summaries in the media or a trailer before deciding.

• 看完电影，学生要准备两分钟的电影片花视频。

  After watching the film, the students must prepare a two-minute trailer.