用户好处短讯是低成本，报警和通知的能力，离线式和非侵入性的通信手段。
The user benefits of SMS are low cost, alerting and notification capabilities, and an off-line and non-intrusive means of communication.
用户好处短讯是低成本，报警和通知的能力，离线式和非侵入性的通信手段。
The user benefits of SMS are low cost, alerting and notification capabilities, and an off-line and non-intrusive means of communication.
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