32.用铜和青铜制造工具

　 make tools of copper and bronze

31.用石头制成的　 be made of stone

30.就技术发展而言

in terms of technical development

29.欧洲大陆　　 have a hand in planning

28.竖起巨石　　 pull up the stones

27.参与策划　　 have a hand in planning

26.与……石头有关 link to the stones

25.很可能　　　　 it is possible that

24.经过……的距离 over a distance of

23.还不知道这些石头如何运来的

　It’s not yet l\known how these were conveyed