With the progress of the time, the manned aircrafts will disappeargradually and the sky is belonged to the UAV.
随着时代进步，有人战机逐步退出天空，未来的天空将是无人机的主战场。
2
Strolling in the old street: Neighbors chat with each other, which is a familiar scene at my childhood but now disappeargradually.
《漫步老巷》邻里间悠闲地攀谈，是童年时熟悉的画面，这样的画面正在不知不觉中流逝。
3
Because of external phenomenon of the supervision weakness of supervision committee, supervision committee can disappeargradually from corporate governance frame.