Niobium
n. 铌\\n[化] 铌Nb
✅ 同义词
🗣️ 情景例句
I wasn't born yesterday.
我又不是三岁的孩子。
Soorow is at parting if at meeting there be laughter.
离别多愁恨，相见尽笑声。
Thanks. Oh, this is too small. Do you have a big piece, please?
谢谢。噢，这张太小了。请问你有一张大的吗？