Cobalt dioxide
[化] 二氧化钴
🧩 词语组成解析
n. 钴, 钴类颜料\\n[化] 钴Co
🗣️ 情景例句
I know.
我知道。
Which one is more clever?
哪一个是较聪明的？
There is another good reason for taking a part-time job.
干兼职工作还有一条充分的理由。