Columbous compound
[建] 三价铌化合物
🧩 词语组成解析
[建] 三价铌, 亚铌
🗣️ 情景例句
He ventured to speak to her.
他鼓起勇气向她说话。
You're sure of passing the exam if you work hard.
只要用功，主汪定能考及格。
Let me see. Er, walk along this road and turn right.
让我想想。呃，沿这条路走然后向右转。