Malonamide
丙二酰胺
🗣️ 情景例句
He's been here for years, he should know the ins and outs of the job by now.
他在这里已经好多年，现在理应熟悉各方面的工作了。
There may be different ways of doing business.
有很多不同的方式。
The entrance to the cave is on a plateau in the Dauphine Alps.
此洞的洞口在丹芬阿尔卑斯山的高原上，