Osmic compound
[化] 四价锇化合物
🧩 词语组成解析
a. 锇的, 四价锇的\\n[医] 锇的
🗣️ 情景例句
But it is not polite to ask older people their age.
但问老人的年龄是不礼貌的。
He was absent yesterday. Do you know why?
昨天他没到，你知道为什么吗？
It was a pleasure. Bye!
不客气。再见！