史前

shǐ qián wén míng

史前文明

prehistoric civilization

shǐ qián kǎo gǔ

史前考古

prehistoric archaeology

shǐ qián nián dài

史前年代

prehistoric age

shǐ qián dòng wù

史前动物

prehistoric animal

shǐ qián mù zàng dì

史前墓葬地

a prehistoric burial ground

shǐ qián dòng kū huì huà

史前洞窟绘画

prehistoric cave paintings