Carbonaceous
a. 碳的, 碳质的, 含碳的\\n[建] 含碳的
🗣️ 情景例句
Here.
这里 。
Serves you right!
活该！
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，