Silicomagnesiofluorite
氟硅钙镁石
🗣️ 情景例句
Could you work in her place?
你能代替她吗？
Yes, our market analysis tells us our prime user will be between 40 and 60.
好的，我们的市场分析告诉我们，我们产品主要的使用者年龄将在40至60岁。
Refuse politely any cold drink from an unknown source.
应谢绝任何不明来源的冷饮。