litmus-

英 ['lɪtməs] 美 ['lɪtməs]

• 染料衣

英英释义

名词 litmus:

1. a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator

词汇搭配

• litmus test 决定性的试验(严峻的...