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
Make sure everybody is at that meeting.
要确定每一位都出席这次会议。
How much is a hair cut?
剪一次头发要多少钱？
Just wonderful!
简直太棒了！