And it is unclear how quickly video-calling will spread.
与目前尚不清楚视频电话普及的速度有多快。
The video secretly shot by a group calling itself Animals Australia is difficult to watch.
自称“澳大利亚动物组织”的人秘密拍摄的视频不太清晰，很难看清楚。
The video secretly shot by a group calling itself Animals Australia is difficult to watch.
自称“澳大利亚动物组织”的人秘密拍摄的视频不太清晰，很难看清楚。
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