Fersmanite
硅钛钙石
🗣️ 情景例句
Never chew with your mouth open.
嚼东西时别张着嘴。
I'll pretend I didn't see that.
睁一只眼，闭一只眼。
Great! Could you bring it to school tomorrow?
好极了！你明天能把它带到学校来吗？