Radon fluoride
[化] 氟化氡
🧩 词语组成解析
radon
['reidɔn]
n. <化>氡（元素符号Rn）;
fluoride
[['fluəraid]]
n. 氟化物\\n[化] 氟化物
🗣️ 情景例句
The rich few nations of this world take up the vast majority of the wealth and resources.
少数几个富裕的国家占有了大多数的财富和资源。
We are in great need of Grade A.
我们急需一等品。
Oh, I have to wash all my clothes, clean the floor, and keep everything clean and tidy.
噢，我得洗我的全部衣服，擦地板和保持每样东西清洁、整齐。