The world came to a standstill Thursday morning, when the Twitter short messaging service went offline for at least an hour.

当t witter短信服务脱机了至少一个小时，世界在周四这个清晨停下脚步。

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The old fixed-line telephone has been replaced by mobile phones, Short Message Service (SMS), e-mail and instant messaging (IM).

老式的固定电话早已被手机、短信息、电子邮件和即使消息（IM）所取代。

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In fact, there is an SMS (Short Messaging Service) service that will automatically send you alerts on your cell phone.

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Using the Short Messaging Service (SMS) functions on mobiles, people with hearing difficulties can communicate by typing messages into their phones.

BBC: Deaf go mobile phone crazy

Therefore, its short messaging service has always worked really well on a mobile device while Facebook has always felt bulky and ill-sized for a mobile format.

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