例句：
Her father will have been dead for 10 years by Octobor this year.
到今年十月份，她的父親已經(jīng)去世10年了。
Had he been taken to the hospital in time, he would have been dead!
要不是被及時(shí)被及時(shí)送到醫(yī)院，他早就死了。
I'm conducting an investigation, but all my leads have been dead ends.
我說(shuō)，“我展開(kāi)了調(diào)查，可是所有的線索都沒(méi)有結(jié)果。”
The Mesopotamian civilisations, not matter how long ago they started, have been dead for a long time.
不管兩河文明起源于多久，很久就已經(jīng)消亡了。