Sodium polymannuronate
[建] 藻酸钠
🧩 词语组成解析
sodium
['sodɪəm]
n. <化>钠(11号元素，符号 Na);
🗣️ 情景例句
Please, after you.
你先请。
Excuse me! I'm sorry I startled you!
对不起！很抱歉，让你受惊了！
The English and Maths papers weren't easy enough for me.
英语和数学试题对我来说不很容易。