... as cold as ice 冰冷；淡漠无情 as dead as a doornail彻底死去 as deaf as a post 完全耳聋 ...
2
?了无声息
... cunning ['k?ni?] adj. 狡猾的；可爱的；巧妙的 as dead as a doornail了无声息/完全(或肯定、确实无疑地)死了的，确已僵死了的 doornail ['d?:nei] n. 门钉，大头钉子 ...
3
?肯定死了
... as dead as a coffin-nail肯定死了，无效的，失效的 as dead as a doornail肯定死了，无效的，失效的 as dead as a herring〈英〉完全死了的 ...
双语例句
1
This cute little door-mouse is asdeadasadoornail.
这个可爱的小老鼠像门钉一样牢固。
2
For God sake, I'm gonna be asdeadasadoornail in five days.
算啦，我五天后就死翘翘了。
3
Without him, we would never eat our flesh and blood out of house and home. We would have to say good riddance to the green-eyed monster and breaking the ice would be asdeadasadoornail.