preview

/ˈprivˌju/

an advertisement consisting of short scenes from a motion picture that will appear in the near future

中文释义：预告片；预览

The movie preview showed only the most exciting scenes to attract audiences.

电影预告片只展示了最激动人心的场景以吸引观众。

Before the lecture, the professor gave a brief preview of the main topics.

讲座前，教授简要预览了主要话题。