Radioactive cobalt
[医] 放射性钴
🧩 词语组成解析
n. 钴, 钴类颜料\\n[化] 钴Co
🗣️ 情景例句
He knows all there is to know,
他无所不知，
Beard the lion in his den.
老虎头上捉虱；太岁头上动土。
First of all, he wrote out a long list of all the foods which were forbidden.
首先，他开列了一张长长的单子，上面列了所有禁吃的食物。