Lethidrone
烯丙吗啡
🗣️ 情景例句
I know it well.
我对它熟得很。
Better an empty purse than an empty head.
宁可钱袋瘪，不要脑袋空。
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，