adj.旧石器时代的;
例句:
The stone balls were tools of hunting in Paleolithic times.
石球是旧石器时代原始人用来狩猎的工具.
Paleolithic man could only make the most basic stone tools.
旧石器时代的人类只能制造最简单的石器.
Paleolithic people can walk the Earth?
旧石器时代的人能否在地球上行走?