but&however

辨析 however和 but

二者都意为“可是，但是”；

but是并列名词，连接两个并列分句，上下二句在总的意义上构成了对比。

I really don't like cheese, but I will try just a little this time.我实在是不喜欢吃奶酪，但是这次我要尝一点。

however不能直接连接两个分句，必须另起新句，并用逗号隔开。

It was raining hard. However, we went out to look for the boy. 雨下得很大，不过我们还是出去寻找那个孩子