全功能数字频率源。
Finally, the complete digital frequency source is introduced.
一部典型的个人数字助理可以兼具手机和个人记事簿功能。
A typical PDA can function as a mobile phone and a personal organizer.
培生集团的一名发言人告诉 BuzzFeed 新闻，“数字材料更便宜，是一项不错的投资”，它提供了音频文本、个性化知识检查和专家视频等新功能。
A Pearson spokesperson told BuzzFeed News that "digital materials are less expensive and a good investment" that offer new features, like audio texts, personalized knowledge checks and expert videos.
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