ring tone
柯林斯词典
1. N-COUNT The ring tone is the sound made by a telephone, especially a cell phone, when it rings. (电话,尤指手机) 铃音
They offer 70 hours' standby time, 2hr. 50min. talk time, and 15 ring tones. 它们给70小时的待机时间、2小时50分钟通话时间以及15种铃音。
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