这个视频用AVI格式保存，播放起来很流畅。

The video is saved in ___AVI format, and it plays smoothly.

为了防止禽流感传播，所有家禽都必须接种疫苗。

To prevent the spread of ___AVI, all poultry must be vaccinated.

他通过捐款支持AVI为退伍军人提供就业培训。

He supports ___AVI by donating to provide job training for veterans.