One very useful scenario: your phone knows that you are heading downtown for dinner, and alerts you of transit conditions or the best places to park.
一个靠谱的设想是：你的手机知道你正往城外赴餐，由它提醒你交通状况以及最佳的停车位。
Climb mountains along the designated route. For your safety, do not enter undeveloped areas in the park, or use mobile phone in stormy weather.
请按指定路线登山游览，为了你的安全，请勿进入景区未开发区域，雷雨天气请勿使用手机。
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