These ideas are the basis for our thought and practice. We are constantly refined, reexamined, and have even been renamed throughout the social changes of the past and present century.

这些概念是我们进行的思索和实践，我们还在不断地完善，重新检验，甚至重新改变这些为这个新世纪。

youdao

However, overfishing throughout the past century has so depleted these populations that they no longer fulfil this role.

ECONOMIST: Lobsters in Maine

This group, which I call the new clerisy, is based largely in academia and the federal bureaucracy, whose numbers and distinct privileges have grown throughout the past half century.

FORBES: The New Power Class Who Will Profit From Obama's Second Term

Of course, the U.S. has experienced many severe droughts during the past century, including the Dust Bowl that produced major ecological and agricultural damage throughout American and Canadian prairies from 1930-36 (and in some areas, until 1940).

FORBES: He's Baaack!: A Hot New Media Blast From Al Gore