Levulinic acid
[化] 3-乙酰丙酸; 4-氧代戊酸\\n[医] 块茎糖酸, 乙酰丙酸
🧩 词语组成解析
乙酰丙
🗣️ 情景例句
I'd like you to meet my friend Malcolm Stewart.
我来为你介绍我的朋友Malcolm Stewart。
If you have no hand, you cannot make a fist.
巧妇难为无米之炊。
Speculations about is nature have been going on for literally thousands of years,
人们对睡眠作用的种种猜测，确实有数千年之久。