Polyuronic acid
[化] 多糖醛酸
🧩 词语组成解析
🗣️ 情景例句
There's something I have to ask you.
我有一件事要问你 。
The child is father of (or to) the man.
三岁定终身。
Our policy is not to grant exclusivity.
我们的方针是不授与专卖权。