The cart's compact design allows it to move through doors and aisles and to function as a stand-in for a malfunctioning fixed reader anywhere within a facility.

其紧凑型设计允许该车在门和过道中行走，也能作为设施内任何故障读取器的替身。移动车读取标签比职员使用手提装置速度更快。

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That said, kudos and credit to the first reader who finds it, writes the unit test that exposes it, and offers a fixed version.

也就是说，看看哪位读者能够找到bug。他可以编写发现bug的单元测试，然后提供一个无bug的版本。

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We've removed the roadblocks: Based on reader feedback, we know where people had problems, so we've fixed or removed the pain points.

去掉了一些比较难的内容：基于读者反馈，我们认识到大家存在某些困难，所以就调整或者去掉了一些难点。

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