Levulinamide
4-氧(代)戊酰胺
🗣️ 情景例句
This is really neat!
太好了
We are happy to be of help.
我们十分乐意帮助。
I love travelling in the country, but I don't like losing my way.
我喜欢在乡间旅行，但却不愿意迷路。