Ject对"prehistoric" 的正确翻译：adj. 史前的。发音：['pri:his'tɔrik]。例句参考：The study of the forms of life existing in prehistoric or geologic times, as represented by the fossils of plants, animals, and other organisms. - 古生物学对出现在史前或地质时代的生命的形成的研究，体现在植物、动物和其它有机体的化石上；