Catalyst

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GRE Barron TOEFL

目录

[编辑] 解释

[编辑] GRE 红宝书

  • n.催化剂, 促使事情发展的因素
  • [英] 催化剂, 促使事情发展的因素 ( a person or thing acting as the stimulus in bringing about or hastening a result)
  • [记] cata ( 下面) +lyst= ( 溶解) -> 起溶解作用 -> 催化

[编辑] Webster Collegiate

noun

  • Date: 1902
  • 1. a substance that enables a chemical reaction to proceed at a usually faster rate or under different conditions (as at a lower temperature) than otherwise possible
  • 2. an agent that provokes or speeds significant change or action


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