Litmus
高中 Senior Highn. 石蕊\\n[化] 石蕊
📝 例句
chalk beer-wort yeast litmus milk
白垩、麦芽汁、酵母浸膏石蕊牛乳(培养基)
litmus mannite agar
石蕊甘露醇琼脂
chalk blood yeast dextrose litmus milk
白垩、血、酵母浸膏石蕊牛乳(培养基)
litmus paper turns red on contact with an acid.
作家要接触真实的生活。
Test: turns blue litmus paper red.
做个试验吧，能把蓝色的石蕊试纸变成红色。
📖 牛津释义
litmus
n[U]
blue colouring-matter that is turned red by acid and can be turned blue again by alkali 石蕊（蓝色物质, 遇酸变红, 再遇硷则还原变蓝）.
🗣️ 情景例句
Oh, wait a minute. What's today's date?
噢， 等一等 ，今天几号？
He can't dress himself yet because he's too young.
他还不能给他自己穿衣服因为他是太年轻的。
No one can avoid being influenced by advertisements.
没有人能避免受广告的影响。