Watch a short demo to get an idea of how Bubble Notation works:
Play video, "走进中国的“思想转化营”", 節目全長 11,58，更多细节参见服务器推荐
Having large sections of the crowd looking at their phones, not at the action on the pitch, could undermine that. There's a balance to be struck, he says.，详情可参考体育直播
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