英语翻译there is no key to happiness.the door is always open.为什么这里用no key.

英语翻译there is no key to happiness.the door is always open.为什么这里用no key. there is no doubt ,i think ,______he will be admitted to a key univesity 英语翻译there is no time frame. 英语翻译there is no smoke without fire. And there is no air or water there.英语翻译, 英语翻译There is no doingIt is impossible to do sth there is a key and a book is there a key to the door is there a key ring? 否定回答 英语翻译There is no end to the making of books. 英语翻译there is no such thing as standard Englishi 英语翻译There is no time like the present 英语翻译There is no one way to reach enlightenment. 英语翻译There is no rule of that kind. there is no point No longer is there There is no way. there is no way