Ferriphengite
铁硅白云母
🗣️ 情景例句
Good night, Susan.
晚安， Susan。
How much is this carpet per square yard?
地毯每平方码要多少钱？
He suggested that a double railway-tunnel should be built.
他提议建一条双轨隧道，这样就解决了通风问题。