The other day, we chatted with my grandmother, and mentioned video calling over the Internet.
有一天，我们和奶奶聊天，提到了网上视频通话。
Skype, for its part, operates the largest network for online voice and video calling.
至于SKYPE，则运营着最大的在线声音和视频通话网络。
When combined with its powerful network effect-how valuable is a video calling service if there is nobody to call?
再加之以其强大的网络效应(视频通话服务如果没人用，能有多少价值呢？)
Chat gets an upgrade, adding stickers, voice and video calling, and notes.
聊天升级了，加入了表情、语音和视频通话以及笔记功能。
TECHNOLOGICAL prophets have forecast the triumph of video calling ever since 1936, when Germany's Reichspost launched the first public videophone service.
早在1936年，当德国帝国邮政首次推出公共视频电话服务时，科技预言家就预言可视电话将会取得巨大成功。
Demonstrating the new FaceTime video-calling feature.
展示新的FaceTime视频通话服务特性。
Demonstrating the new FaceTime video-calling feature.
展示新的FaceTime视频通话服务特性。
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