Spodiosite
氟磷钙石
🗣️ 情景例句
before getting to the tough stuff--math.
在对付难缠的东西 数学 之前。
The goods were carefully packed and shipped here in excellent condition.
货物包装得很仔细，装船很小心，在这儿完好无损。
That's all right. Why don't you call me Robert or Bob? But please don't call me Mr. Bob.
没关系。你为什么不叫我罗伯特或鲍勃？但请不要叫我鲍勃先生。