Rontgenite
氟维钙铈矿
🗣️ 情景例句
I have a call to make.
我需要打个电话。
If I buy tha car,I'll have to borrow some money.
如果我买了那汽车，我将不得不借一些钱。
I don't know. Let's go for a walk.
我不知道。咱们去散散步吧。