Levulic acid
[化] 3-乙酰丙酸; 4-氧代戊酸
🧩 词语组成解析
🗣️ 情景例句
With a little help from the ASPCA,
可以请ASPCA帮忙，
How dare you stand me up!
你竟敢放我鸽子！
The policemen could not cope with the crowds.
警察无法对付群众。