Levulinamide
4-氧(代)戊酰胺
🗣️ 情景例句
All kinds of flavors.
各种口味的都有。
Mary, this is Joe's brother David.
玛丽，这是乔的兄弟戴维。
Yes. That's just right. It's nice and soft, too.
对。那正好，又软又好看。