Video conferencing has long been plagued by the detached feel of talking to a television set, often with awkward audio delays and jerky video.

• 长时期以来，网络视频会议似乎就是对电视录像设备谈话，给人们带来被隔离的苦脑。不尽如此，它还经常伴随着声音延迟和图像闪烁等现象。