Radon content
[医] 氡含量
🧩 词语组成解析
radon
['reidɔn]
n. <化>氡（元素符号Rn）;
🗣️ 情景例句
What else?
还有什么？
For those of you that didn't hear it, the question was how soon we could expect the product to be on sale.
你们并未听说过，问题是产品多快能上市。
What's in it?
里面是什么东西？