Tollen's aldehydes test
[建] 托醛试验
🧩 词语组成解析
[医]醛
🗣️ 情景例句
Hello, Miss Huang. How are you?
喂，黄小姐，你好吗？
Are these books all yours?
这些书全是你的吗？
but the paper was wrapped round a drum which rotated slowly.
根但是纸是卷在慢慢旋转的圆筒上的。