Sodium acid fluoride
[建] 氢氟化钠
🧩 词语组成解析
sodium
['sodɪəm]
n. <化>钠(11号元素，符号 Na);
fluoride
[['fluəraid]]
n. 氟化物\\n[化] 氟化物
🗣️ 情景例句
Why advanced?
为什么是高级的？
But after one week and I still hadn't made a single sale, my heart was in my boots.
但过了一星期还没有做成一笔生意，我感到十分焦急。
What was the population of the more developed countries in 1950?
1950年较发达国家的人口是多少？