仅仅半年以后，iPhone 5 发布，而这次 iPhone 有个大事件，丢掉了过去一英寸宽的接口，取而代之的是一个小得多的 Lighting 接口。
12:15: One group of protesters breaches the walls of the parliament compound. Police fire tear gas and use batons. The crowd does not retreat, even as organisers urge people on Discord to pull back.
。关于这个话题，WPS官方版本下载提供了深入分析
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And, if a robot arm were to swing out towards you, for safety reasons you would want to be able to immediately stop it and push it back without harming yourself, reverse that motion instantly. For one thing, that requires a back-driveable actuator.