Lev-ulinic acid
[化] 乙酰丙酸
🧩 词语组成解析
n. 列弗（保加利亚的货币单位）
🗣️ 情景例句
It's well worth the time.
这很值得花时间。
Could you say it again?
你能再说一遍吗？
It looks like we have problem with the shipment.
货有问题哦。