| 单词 | 石蕊试纸 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔contact〕Litmus paper turns red on contact with an acid.石蕊试纸遇酸度会变红美国传统〔litmus paper〕An unsized white paper impregnated with litmus and used as a pH or acid-base indicator.石蕊试纸：未定尺寸并浸满石蕊的白纸，可用作Ph值或酸－碱显示剂美国传统〔litmus test〕A test for chemical acidity or basicity using litmus paper.石蕊色质测试：用石蕊试纸对化学酸、碱性所作的测试美国传统〔presence〕Litmus paper turns red in the presence of an acid.石蕊试纸遇到酸就变红。牛津高阶The litmus paper will turn red in an acid and blue in an alkali.石蕊试纸遇酸变红，遇碱变蓝。剑桥国际 |
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