Columbium oxytrichloride
[化] 三氯氧化铌
🧩 词语组成解析
n. [化]铌
三氯氧化物
🗣️ 情景例句
What are your major and minor subjects?
你主修和副修什么科目？
He's been behind bars for almost 30 years.
他坐了将近30年牢。
None of us is afraid of difficulties.
我们当中没有一个人害怕困难。