phenolphthalein
noun [ U ] chemistry specialized uk/ˌfiː.nɒlˈfθæl.iːn/ us/ˌfiː.noʊlˈθæl.iːn/
酚酞
a substance that is colourless when it is mixed with an acid and pink or red when mixed with an alkali
江苏热线英汉汉英双解词典包含207361条英汉翻译词条,涵盖了常用英语单词及词组短语的翻译及用法,是英语学习的必备工具。