Niobium pentafluoride
[化] 五氟化铌
🧩 词语组成解析
n. 铌\\n[化] 铌Nb
五氟化物
🗣️ 情景例句
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请您告诉我们付款方式好吗？
It's very warm.
天气很暖和啊。
Excuse me! Are you from the USA?
对不起，你是美国人吗？