Cobalt-60
[化] 放射性钴; 钴60
🧩 词语组成解析
n. 钴, 钴类颜料\\n[化] 钴Co
sixty
🗣️ 情景例句
Please sit down, Alexandra.
请坐 Alexandra。
It is one thing to speak much and another to speak pertinently.
话讲得多是一回事，讲得恰当是另一回事。
What's that?
那是什么？