Johnstrupite
氟硅铈矿
🗣️ 情景例句
He said I should call him.
他说我可以打电话给他。
When sorrows come, they come not single spies, but in battalions.
祸不单行。
How long can you hold your breath underwater?
你在水里屏住气不呼吸能呆多久？