Coltan
钶钽铁矿
🗣️ 情景例句
How much does it cost?
这得花多少钱？
He always called me as my friend.
他总是以“我的朋友”称呼我。
'Have you anything to declare?' he asked, looking me in the eye.
“您有什么需要申报的吗？”他直盯着我的眼睛问。