For example, a keyword can be extended as a unit of weight in a recipe, as a part name in a hardware reference, or as a variable in a programming reference.

比方说，一个关键字可以扩展成菜谱中的重量单位、硬件参考中的部件名称或者编程参考中的变量。

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InteliHealth: This reference site has an Ask the Expert section, as well as a database full of information for diseases and conditions, from asthma to digestive issues to weight management to STDs.

InteliHealth：该参考站点设有一个“问专家”板块，也就是一个包含所有疾病和病症信息的数据库，从哮喘，到体重控制，再到性传染病。

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Another is "anchoring", where we place excessive weight on the original number we see - say a share price - and then make future decisions using that initial figure as a reference point.

再者是“锚固”，我们把过多的中心放在股票的原始价位，然后参照这个最初的价格来做决定。

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There is enormous potential in the UN Plan of Action in bringing the full weight of the UN to bear on the challenges, and in being a point of reference for others who share the concern to turn the tide.

UNESCO: World Press Freedom Day 2013