练习英语preview

pre-study

Preview：预习名词an inspection or viewing of something before it is bought or becomes generally known and available.you can get a sneak preview of the pictures on sale动词display (a product, movie, play, etc.) before it officially goes on sale or opens to the public.the company will preview an enhanced version of its database

preview GRE 英 [ˈpri:vju:] 美 [ˈpriˌvju] n. 试映，预演; 预告片; 象征，预示;vt. 预映; 预先观看; 概述; 扼要介绍;过去分词: previewed 复数: previews 过去式: previewed 现在分词: previewing 第三人称单数: previews

preview，预习，预先学习的意思。也可以说 study the lesson before taking a class.希望可以帮到你。