remnants of a defunct civilization that thrived on this very spot此地曾盛极一时的文明消亡后的遗迹

the leader of the now defunct Social Democratic Party现已垮台的社会民主党的领袖

The last address I could find for you was in the Detroit area, but it's now defunct.我能为你找到的最后一个地址是在底特律一带, 但是现在这个地址也已经无效了。

They bought all their equipment from a defunct brewery in Manhattan.他们的所有设备均购自曼哈顿一家已倒闭的啤酒厂。