The bike that the service company provides has GPS or Bluetooth on it, and those bikes can be easily unlocked with a smart phone and left anywhere in public.

这家服务公司提供的自行车上装有 GPS 或蓝牙，这些自行车可以用智能手机轻松解锁，还可以停放在公共场所的任何地方。

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They are locked by the user after riding, and then unlocked by the next rider with a mobile phone.

骑行结束后，用户会将其锁定，然后由下一位骑行者用手机解锁。

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“He already unlocked Pod Five?” she whispered into the phone.

他已经打开了第五区域的锁？ “她喃喃地在电话里说道。

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The best post I found about setting up this unlocked phone is from J.

FORBES: Nexus 4 Phone - A Thing Of Beauty From Google

Add in the respondents who said they would buy an unlocked phone and you get a majority.

FORBES: Waiting for iPhone 5 and New Androids: Users Consider Their Smartphones Obsolete in a Year

But the final ruling says there are more options now for obtaining an unlocked phone than in previous years.

CNN: Unlocking new smartphone becomes harder Saturday