Columbium pentoxide
[化] 五氧化二铌
🧩 词语组成解析
n. [化]铌
n. [化]五氧化物
🗣️ 情景例句
What he lacks in experience he makes up for in enthusiasm.
他用热心工作来弥补其经验的不足。
When did you leave?
你什么时候离开？
It's a very old castle. It is the oldest one in Britain.
这个城堡很古老，它是英国最老的了。