e. g: When did you return home?
你什么时候回家的?
In this way, we could not only judge the direction of movement of tags accurately, but also judge other complicated logic, e. g. the midway return of tags.
采用这种方法不但可以准确判标签运动方向,而且可以判断标签中途返回等一些复杂逻辑。
Interactivity, e. g. ordering of PPV movies, can be achieved through other channels than the traditional STB return channel.
互动性,如订购PPV电影可以通过传统的STB返回频道之外的其它频道实现。
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