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
Australia is a unique country.
澳大利亚是世上独一无二的国家。
Where is gate six?
6号登机门在哪儿？
Alf did this for over two years and his fellow dustmen kept his secret Alf's wife has never discovered that she married a dustman and she never will, for Alf has just found another job.
两年多以来，艾尔弗一直这样，他的同事也为他保守秘密。 艾尔弗的妻子一直不知道她嫁给了一个清洁工，而且她永远也不会知道了，因为艾尔弗已找到薪职，