One of the difficulties with technical documentation is that as soon as it is written, it is obsolete, out-of-date, and unreliable.

技术文档的难题之一是，文档一编写好，马上就会变得陈旧、过时和不可靠。

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Get your skills up to date . "Companies get rid of people whose skills are obsolete and replace them with people who are already trained, " Bayer says.

让你的技能与时并进 ：「公司总会想耍掉那些技术脱节的人，然后由那些受良好训练的人来顶替。」

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The Versioning Review Date should correspond to when the analyst anticipates that some part of the requirement will change or become obsolete.

Versioning Review Date应当与分析师期望需求的某些部分将会变化或者作废的时间一致。

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Local search, the device enables owners to tap into an always up-to-date database of local information, rendering obsolete the war over which device has the most millions of points-of-interest.

ENGADGET: Switched On: Dash delivers open roads, open questions (Part 1)