They offer 70 hours' standby time, 2hr 50min talk time, and 15 ring tones.
这些手机可待机70小时，通话时长达2小时50分钟，并提供15种铃音。
柯林斯例句
In maintenance, in both professional and technical personnel standby time, can you solve problems time.
在维修方面, 备有专业技术人员随时待命, 可及时为您排忧解难.
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