Mannich reaction
[化] 曼尼希反应; 曼尼希缩合反应
🧩 词语组成解析
🗣️ 情景例句
Welcome to New York.
欢迎你来纽约。
How much is the rent?
租金要多少钱？
and the profits from the exhibition were used to build museums and colleges.
博览会的赢利用来建造博物馆和高等学校。