Polyuronic acid
[化] 多糖醛酸
🧩 词语组成解析
🗣️ 情景例句
And I would like to introduce the young man
现在我希望向大家介绍这位年轻人
The times of comradeship in sports and play are full of meaning.
这个通过运动或游戏培养友情的时代，是极有意义的。
Some time ago, and interesting discovery was made by archaeologists on the Aegean island of Kea.
不久之前，在爱琴海的基亚岛上，考古工作者有一项有趣的发现。