史前的英文：
prehistoric; prehistorical

The branch of paleontology that deals with plant fossils and ancient vegetation.
史前植物学古生物学的分支，研究植物化石以及古代植被

The study of the development and evolution of biochemicals and biochemical processes.
史前生物化学对生物化学以及生物化学过程的发展和演变的研究

lacustrine dwellings
(史前)湖上村落

Traces of prehistoric habitation
史前居民的遗迹

Prehistoric man,monuments,cave paintings
史前的人类、遗迹、洞穴壁画

It's the most enigmatic prehistoric monument on earth.
它是地球上最神秘的史前遗迹。

historic times
有史时期(与史前时期相对)

We visited the prehistoric burial grounds discovered last year.
我们参观了去年发现的史前墓葬地。

The study of humanlike creatures more primitive than Homo sapiens.
史前人类学对比人类更原始的类人动物的研究

This prehistoric animal grew a thick protective covering.
这种史前动物长着一层厚厚的保护性外皮。

`pre' is a prefix in `prehistoric' and `premedical' and `prepaid'.
‘pre’在‘prehistoric（史前的）’、‘premedical（医学院预科的）’和‘prepaid（预先支付的）’中是前缀。

Prehistoric man,monuments,cave paintings
史前的人类、遗迹、洞穴壁画

This prehistoric animal grew a thick protective covering.
这种史前动物长着一层厚厚的保护性外皮。

The ainu settlers in Hokkaido are the last remnant of a prehistoric race
北海道的阿伊努人是史前某个种族的最后残存者。

A prehistoric monument consisting of monoliths encircling a mound.
巨石纪念物由围绕堤丘的数块独石柱构成的史前纪念物

`pre' is a prefix in `prehistoric' and `premedical' and `prepaid'.
‘pre’在‘prehistoric（史前的）’、‘premedical（医学院预科的）’和‘prepaid（预先支付的）’中是前缀。

Prehistoric man,monuments,cave paintings
史前的人类、遗迹、洞穴壁画

This prehistoric animal grew a thick protective covering.
这种史前动物长着一层厚厚的保护性外皮。

The ainu settlers in Hokkaido are the last remnant of a prehistoric race
北海道的阿伊努人是史前某个种族的最后残存者。

A prehistoric monument consisting of monoliths encircling a mound.
巨石纪念物由围绕堤丘的数块独石柱构成的史前纪念物