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
How long is it going to take for me to get there?
到那里还需要多久时间
The tail does often catch the fox.
狐狸常因尾巴而被捕。
But I thought you said you weren't English.
但是我原以为你说你不是英国人。