If you're like most people, you've been mostly a passive consumer of media, and I want to help you to become comfortable as an active user.

如果你像很多人一样，一直是媒体的被动消费者，那么我想助你成为一个感觉良好的主动且活跃用户。

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This simply means that the user is not a passive consumer, but an active participant.

这就意味着用户不是被动使用者，而是积极参与者。

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This paper introduces a user terminal equipment for the double-satellite positioning system. The terminal, named continuous navigation passive positioning system, is based on Rubidium atomic clock.

介绍了一种基于铷钟的双星系统用户终端机——连续导航无源双星定位系统。

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Nintendo is also touting two features called StreetPass and SpotPass, which basically amount to the device being able to receive new updates and content in the passive modes, all without the user needing to do anything.

FORBES: At $250, Nintendo 3DS Will Need To Go Beyond Games Or Go Home

"As a large and rapidly growing energy user, Apple cannot be a sustainability leader if it remains a passive recipient of the electricity it is provided from dirty utilities, " the Greenpeace report says (PDF).

CNN: Apple's green image continues to be dirtied