Columbium oxide
[建] 氧化铌
🧩 词语组成解析
n. [化]铌
oxide
['ɑksaɪd]
n. [化]氧化物;
🗣️ 情景例句
Let's get engaged.
我们订婚吗？
It is our permanent principle that contracts are honored and commercial integrity is maintained.
重合同、守信用是我们的一贯原则。
Among these I would list string and brown paper, kept by thrifty people when a parcel has been opened, to save buying these two requisites.
这些东西中我想举出线绳和包装纸为例。节俭的人们打开包裹后便把这两样必备的东西收藏起来。省得日后去买。