They were killed, to the last man, in a futile attack.因为进攻失败,他们全部被杀, 无一幸免.Their efforts to revive him were futile.他们对他抢救无效.Their costly and futile attempt to subjugate the Afghans lasted just 10 years.他们大动干戈想要控制阿富汗地区，但只持...
这台机器是现代电脑的始祖.This machine is the ancestor of the modern computer.据《圣经》记载, 亚当是人类始祖.According to the Bible, Adam was the first man.脊椎动物的起源和它们的始祖问题,由于事实太少仍然不很清楚.The origin of vertebrates and their ancestry are problems stil...