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
I keep thinking about the dog -- about Gemma,
我一直在想那只狗 Gemma，
I must be the first.
我一定要得第一。
I regret to inform you that we are unable to offer you employment.
很遗憾地告诉你，我们无法雇用你。