MP4

US [ˌɛmpiːˈfɔː(r)]
UK 
  • abbr.一种视频和音频压缩格式和标准;因作为MP3播放器的下一代而得名
  • n.MP4 技术(一种影音压缩技术);MP4 文件
  • Web四;小四;四个
MP4
n.
1.
MP4 技术(一种影音压缩技术); MP4 文件a method of reducing the size of a computer file containing sound and images; a file that is reduced in size in this way