The earliest people were roving hunters and gatherers who made primitive stone tools . 最早的居民是流动的狩猎者和聚居者，他们制作了一些原始的石器。
The aircraft carrier, whether in its crudest form or its most advanced form, is a hybrid creation . 不论是最原始的还是最先进的航空母舰，都具有双重用途。
This initial layer, formed of both cellulosic and noncellulosic materials, is called the primary wall . 这个原始的管状结构，由纤维素和非纤维物质构成，称作初生层。
Mankind commenced in a state of extreme rudeness from which they had risen by slow and successive steps . 人类是从极端原始的状况下迈步，而后一步接着一步慢慢上升的。
There is no necessity to take into consideration the basis which the people will need to continue a most primitive existence . 没有必要考虑这个民族维持最原始的生存的基础问题。
Wardlaw reproduced to the same scale photographs of the vegetative shoot apex of many primitive and advanced land plants . 沃德劳以同样的放大倍数复制了许多原始的和进化的陆生植物营养茎尖的照片。
We were simply glad to be back in primitive africa again and in an atmosphere where the unexpected might just possibly happen . 我们只是高兴能再次回到原始的非洲，回到一个或许真会出现意外的环境中。
In the course of drilling, mining and deposition of hear producing materials in the subsurface, the original natural geothermal field is disturbed . 在钻井，采矿和发热物质的地下深积的过程中，原始的天然地热场受到了扰动。
There has always been something primitive and cosy in his attitude towards life; he loved the family hearth, he loved gossip, and he loved rumbling . 他对人生的态度永远具有一种原始的温存，他爱一家人坐在炉边，他爱听闲是闲非，爱听抱怨和诉苦。
