Samiresite
铅铌钛铀矿
🗣️ 情景例句
That must be Nat.
这一定是Nat。
He who has lost his good name is a dead man among the living.
丧失好名誉，犹如活死人。
The airport was built years ago, but for some reason it could not be used then.
机场是许多年前建的，但由于某种原因当时未能启用。