解压视频的英文表达是 "decompress video"。
"Decompress" 是 "解压" 的意思，来源于 "de-"（反）和 "compress"（压缩）。
"Video" 是 "视频" 的意思，来源于拉丁语 "videre"，意为 "看"。
例句：
I need to decompress the video before I can watch it. (我需要先解压视频才能观看。)
The software is designed to decompress videos quickly and efficiently. (这个软件的设计是快速和高效地解压视频。)