Radon emanation
[医] 氡射气
🧩 词语组成解析
radon
['reidɔn]
n. <化>氡（元素符号Rn）;
n. 散发, 发出\\n[化] 射气
🗣️ 情景例句
you can pay the mortgage every month.
你们能每月按时付款。
By no means.
决不。
He earned enormous sums of money and was paid as much as
100 for a single appearance.