n.史前時(shí)代;史前學(xué);(事件發(fā)生的)歷史背景
In the long period , the researches of prehistory are abundant. 而在漫長(zhǎng)的時(shí)間長(zhǎng)河之中,對(duì)于史前文明的研究可謂浩瀚如星海。
These climate changes continued throughout prehistory. 這種氣候變化持續(xù)了整個(gè)史前期。