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单词 litmus
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释义  Related topics: Chemistrylit·mus /ˈlɪtməs/ noun [uncountable]  HCa chemical that turns red when it touches acid, and blue when it touches an alkali 石蕊〔一种遇酸变红、遇碱变蓝的化学物质〕Examples from the Corpuslitmus• The case of travellers is something of a litmus test.• Forbes, meanwhile, has made winning Arizona his litmus test for capturing the nomination.• The use of litmus paper furnishes another example of such a transformation.• What clearer laboratory or litmus test could there be to show that our methods are genuinely additional?• He instituted a stringent litmus test on doctrinal matters.• In a drawer the litmus paper mused upon which way to turn.• Comparison is the only true litmus test of objectivity.Origin litmus (1300-1400) Old Norse litmosi, from litr “coloring substance” + mosi “moss”lit·mus nounChineseSyllable  when a touches acid, it chemical that Corpus red turns
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更新时间：2026/8/17 1:30:18