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
Right. Would you give me room service, please?
好。请接房间服务部好吗？
Idleness is the rust of the mind.
懒惰使脑子生锈。
No, I'm not.I'm going to retire.I feel very tired.
不，我不准备拍了。我准备退休了。我感觉累得很。