but引導(dǎo)定語(yǔ)從句的用法：

　　1、There is no rule in English but has exceptions.英語(yǔ)中沒(méi)有無(wú)例外的規(guī)則。

　　2、There is no old habit but may be cured by a strong will-power.通過(guò)強(qiáng)大的意志力沒(méi)有改變不了的舊習(xí)慣。

　　3、With the introduction of the electronic computer,there is no complicated problem but can be solved in a few hours.由于引進(jìn)了電子計(jì)算機(jī)，沒(méi)有在幾小時(shí)內(nèi)解決不了的復(fù)雜問(wèn)題。

　　4、There is no human being but errs.沒(méi)有不犯錯(cuò)誤的人。

　　5、There is no mother but loves her children.沒(méi)有不愛(ài)自己孩子的母親。

　　6、There was no one present but knew the story already.在場(chǎng)的人都知道這個(gè)故事。