Vedio retrieval的用法和样例：
例句
- Video retrieval aim is to find the needed video slip from a mass of videodata.
视频检索的目的就是要从大量的视频数据中找到所需要的视频片断。 - This paper analyzes the characteristic and advantage of digital video and describes the imminency and importance of content-based video retrieval.
摘要分析了数字视频的特点和优势，阐述了基于内容的视频检索的迫切性和重要性。
