Davidite
铀钛磁铁矿, 铈铀钛铁矿
🗣️ 情景例句
Remember me, Malcolm?
还记得我吗 ，Malcolm？
Long tarrying takes all thands away.
耽搁太久，会把人家的谢意全送走。
'He had travelled only seven miles across the Channel when his engine failed and he was forced to land on sea.
但他只在海峡上空飞行7英里，引擎就发生了故障，他只好降落在海面上。