Levulinate
乙酰丙酸
🗣️ 情景例句
I'm thinking of ordering 100 sets. But one problem-
我正考虑定购一百台，只是一个问题-
The devil lurks behind the cross.
貌善实恶。
' I continued driving and after some time,the examiner tapped loudly,
”我继续往前开着。过了一会儿，主考人砰砰地敲了起来。