英语翻译
From the moment the invaders arrived,breathed our air ,ate and drank ,they were doomed.They were undone ,destroyed,after all of man's weapons and devices had failed ,by the tinest creatures that God in his wisdom put upon this earth.By the toll of a billion deaths ,man had earned his immunity ,his right to survive among this planet's infinite organisms.And that right is ours against all challenges,for neither do men live ,nor die ,in vain .重点是后边for neither 那部分,比较费解,翻译之后最好能从语法角度阐述一下,