Other innovations of the late fourth millennium include the wheel, probably developed first as a more efficient way of making pottery and then transferred to transport.

第四千禧年后期的其他创新包括轮子，可能首先是作为一种更有效的制陶方式发展起来的，然后才被转移到运输上。

youdao

Some of the earliest human civilizations arose in southern Mesopotamia, in what is now southern Iraq, in the fourth millennium B.C..

一些最早的人类文明于公元前4000年出现在美索不达米亚南部，也就是现在的伊拉克南部。

youdao

By the late fourth millennium B.C., there is already evidence of large culture zones reaching from Eastern Europe to the western borders of Mongolia.

到公元前4000年末已有证据表明，存在着从东欧延伸到蒙古西边境的大文化圈。

youdao

You reach Egypt, and of course, Egypt is one of the great empires of antiquity going back into, perhaps, certainly into the fourth millennium, possibly into the fifth, by no means as powerful as it used to be, far from it.

你来到了埃及的领地,当然,埃及是古代最伟大的帝国之一,它有近四千年,甚至五千年的历史,毫无疑问,古埃及达到了空前绝后的强大

耶鲁公开课 - 古希腊历史简介课程节选

One of the hubs of Mesopotamia, Ur was founded in the fourth millennium B.

CNN: U.S., Iraqi leaders confer on nation's future

The list, which includes 41 countries and territories, dating from the fourth millennium BC to 2003, contains many places threatened by poorly managed tourism.

BBC: An increase of urban areas on watch

Team captain Ryan Jones was presented with the RBS 6 Nations championship trophy by Prince William, who was on his fourth visit to the Millennium Stadium since becoming Vice Royal Patron of the Welsh Rugby Union in February 2007.

BBC: Welsh joy over Grand Slam victory