Cell phones and personal digital assistants (PDAs) are made of precious metals, copper, and plastics.

手机以及掌上电脑(PDA)是由贵重金属、铜以及塑料制造的。

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In personal digital gadgets, for example, 23 percent of respondents said they had bought such goods for the first time.

个人数字产品方面，23%的人说他们是首次购买该类产品。

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The idea that kids might have their own cell phones with text messaging or other personal digital assistants (PDAs) was laughable.

那种认为孩子们可能拥有自己的具有文本消息传递功能的手机、或者其他个人数字助理(Personal Digital Assistants, PDA)的想法，在当时被认为是很可笑的。

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It was what the old nomenclature promised it would be: my Personal Digital Assistant.

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But skeptics wonder if these increasingly personal digital experiences come at the expense of face-to-face interactions.

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It may be hard to believe, but there is yet another interesting personal digital assistant coming soon.

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