Acetacetatic acid
[建] 乙酰醋酸
🧩 词语组成解析
🗣️ 情景例句
This winter has been a cold one.
目前来看，今年冬天算比较冷的。
He tells me is a city boy, and this is his first time to live in a camp like this.
他说他是一个都市男孩，这是他第一次过这种野营生活。
Don't worry. I'm OK.
别担心。我没事。