Levulic acid
[化] 3-乙酰丙酸; 4-氧代戊酸
🧩 词语组成解析
🗣️ 情景例句
Yes, he's my brother.
是的。他是我哥哥。
I learned Japanese yesterday.
我昨天学日文。
When he went outside half an hour later, he was astonished to find the little black lamb was almost white.
半小时后，当他从屋里出来时，他惊奇地发现小黑羔羊全身几乎都变成白色。