Berlinite
块磷铝矿
🗣️ 情景例句
What are the chances of my getting on the next flight?
我登上下一次航班的可能性有多大？
To lift
击起
Up to now, historians have assumed that calendars came into being with the advent of agriculture, for then man was faced with a real need to understand something about the seasons.
历史学家迄今认为日历是随农业的问世而出现的，因为当时人们面临着了解四季的实际需要，