Flotator
浮选机
🗣️ 情景例句
Mom, you're winning!
妈妈， 你赢了！
Is there a museum nearby?
这附近有没有博物馆？
suggested an idea on which he had been working for many years to the British Government and industrial circles.
他向英国政府和工业界提出了他研究多年的一项计划。