Columbium dioxide
[化] 二氧化铌
🧩 词语组成解析
n. [化]铌
🗣️ 情景例句
I wonder if you could tell me.
不知你是否能告诉我。
Excuse me for that.
对不起我为那件事。
The big clock which used to strike the hours day and night was damaged many years ago and has been silent ever since.
教堂的钟很大，以前不分昼夜打点报时，但很多年前遭到毁坏，从此便无声无息了。