Reducitc acid
[化] 还原酸; 1,2-二羟-3-酮环戊烯
🧩 词语组成解析
🗣️ 情景例句
These are polite questions.
这些问题都是礼貌的。
What did you ask him?
你问他什么？
Then he put a piece of cheese in his pocket and went away.
然后把一块乳酪装进衣袋里走了。