1.如播卡顿或失败可切换片源。
2.如播放失败可点击切换线路。
3.我们最近发现视频里开始有插播广告，每个视频大概有好几秒，可以用快进跳过。这些广告都是视频源那边自带的，我们这边无法控制，谢谢大家的谅解。
年份：
1991
主演：
类别：
US take on the classic UK documentary series "Up". This first US entry follows a group of economically, racially and socially diverse 7-year-olds. The idea was to make followup films on them every 7 years but the project ended in 2006.
