An activity represents a user interaction.

一个活动代表一次用户交互。

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The portal must respond to any user interaction within 7 seconds.

门户必须在 7 秒钟内对任何用户交互作出响应。

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In particular, it expects user interaction for its boot sequence and configuration.

特别地，它希望在确定其引导顺序和配置时能与用户进行交互。

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That invisible fix is a trick Microsoft adopted in late 2011 from Google, which has long pushed auto-updates to Chrome with no user interaction.

FORBES: Connect

The ground-breaking partnership brings the future of computer interaction-Leap Motion's incredibly fast and accurate natural user interface-to millions of potential consumers around the world.

ENGADGET: ASUS partners up with Leap Motion, PCs with 3D motion control to debut in 2013

The Esplora differs from all preceding boards in that it provides a built-in, ready-to-use set of onboard sensors, targeted for user interaction.

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