在远古时期，狩猎是人类最主要的活动。
在远古时期，人们用石头来制造工具。
他们认为地下的石油在远古时期就开始形成。
They think that the oil under the surface of the earth originated in the distant past .
他们通过显微镜下的羽毛来确定它们在远古时期的颜色。
They used microscopic features to determine the ancient feathers' color.
在蒙古高原上人与马的关系，在远古时期就十分密切了。
The relationship between person and horse at Mongolia plateau is very close in period time immemorial.
三层浆战船的增加给你在远古时期的海战提供了新的选择。
The addition of the trireme definitely increases your options in terms of ancient - era naval combat.
在古希腊有个叫Magnesia的地方，这里早在远古时期就盛产许多矿石。
There was a place in ancient Greece called Magnesia and this place was a source of several useful mineral products back in ancient times.
在远古时期，尤其在不宜种植葡萄以酿制葡萄酒的北方地区，啤酒已是普通饮料。
Known from ancient times, beer was especially common in northern climates not conducive to grape cultivation FOR wine.
在远古时期人类就开始饲养宠物了，从那时起，在很多生活方面宠物给我提供帮助。
Man began to raise pets in ancient times, and from then on, pets gave help in many aspects of life.
在远古时期，这些翼龙很可能是将它们的蛋埋在湖岸边的沙滩下，以防它们的蛋宝宝被太阳晒干。
Hamipterusmost likely buried their eggs in sand along the shore of an ancient lake to prevent them from drying out.
是啊，会这样的——这是一种本能反应。追根溯源，打哈欠这一行为在远古时期就是人类最早的行为之一。
It just happens — it's instinctive, and it's a very primal aspect of human behavior that goes back to ancient herd mentality.
在远古时期，丛林横生，洪水泛滥，野兽横行，人类在大自然中属于弱势群体，面临着来自各方面的威胁。
In ancient times, the jungle Hengsheng, floods, wild animals running amok, in human nature are vulnerable, faced with the threat from all sides.
礼物经济在物质不匮乏的远古时期就已经存在。
Gift economies exist in primitive cultures where scarcity is not a problem.
在玫瑰草中有关于交融模式是如何在更远古时期旋转的记录。
There are records in Palmarosa for how patterns of communion were spun in more ancient times.
在灶神星南半球，一个巨大的陨石坑引人注目。这是远古时期一次陨石剧烈撞击的结果，(科学家们认为，)撞击后导致陨石坠落地球，或有碎片飞出形成小行星。
Vesta's southern section is dominated by a giant crater, the result of a collision eons ago that's believed to have pelted Earth with numerous meteorites, or broken off pieces of asteroids.
可能遗自已经远古时期无害的病毒感染，在进化过程中得以保留起到某种有益作用。
They are probably left over from ancient viral infections that were pacified and recruited by evolution to do something useful.
可能遗自已经远古时期无害的病毒感染，在进化过程中得以保留起到某种有益作用。
They are probably left over from ancient viral infections that were pacified and recruited by evolution to do something useful.
应用推荐