Columbium oxytrifluoride
[建] 三氟氧化铌
🧩 词语组成解析
n. [化]铌
🗣️ 情景例句
Mr Wang, I'd like you to meet my brother, Haitian.
王先生，我想请你见见我弟弟，海天。
I have so much to do after I retire.
我在退休后有许多事要做。
Certainly! I'm coming now, Mum!
当然可以，妈妈，我马上就来。