nevertheless,but和however的比较：
（1）but用来引出相反的意见,是口语常用语,如：sally was amused,but i was very embarrassed.萨莉很开心,但我却很尴尬.
（2）however比but的词义要弱些,并不直接引出相反的意见,因此常用作插入语,如：the most surprising thing about it,however,is that it can land anywhere.不过,答案〖but〗解析：关于这架飞机最使人吃惊的事情是,它可以在任何地方着陆.
(3)nevertheless的含义为即使做出完全的让步,也没有任何影响,或者说也不是决定因素,如：there was no news；nevertheless,she went on hoping.一点消息也没有,但她仍抱着希望.
还有一些例句：
nevertheless
ad.
1. 仍然,不过,然而
She was angry; nevertheless, she listened to me.
她很生气,但还是听了我的话.
We can't act on your advice. Nevertheless, thank you for giving it.
我们不能照你的建议去办.不过承蒙您提出来,十分感谢.