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
Perhaps we could see the house this weekend.
也许这周末我们会去看看这栋房子。
How much is a call to the United states?
打一个电话到美国去需要多少钱？
What's in the box? Ann thought. Was it some clothes?
“盒子里是啥呢？”安心想，会是衣服吗？