'With a built-in MP3 player and FM radio, Nokia 215 keeps you entertained for up to 50 or 45 hours playback respectively, ' the firm says.
微软公司介绍道：“使用内置音乐播放器和调频收音机，诺基亚215可供你娱乐50或45小时。”
For people concerned about safety — women in particular — Taser International has come up with a hand-held electric weapon with a built-in MP3 player.
为了满足那些担心安全问题的人——尤其是女人——的需要，泰瑟国际公司发明了一种手持的内置MP3播放器的电子防身设备。
In all likelihood, you already own an MP3 player and have Internet access.
很可能，你已经拥有了一台MP3播放器，并连接上了互联网。
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