however

英 [haʊˈevə(r)]

 美 [haʊˈevər] 

adv.
然而;(与形容词或副词连用)无论到什么程度，不管多么;不管怎样;无论如何;不过;仍然
conj.
不管用什么方法;虽然

例句

There was one respect, however, in which they differed. 
然而，他们在一点上有分歧。

However much it hurt, he could do it. 
无论有多痛，他都能做到。

When you come down to it, however, the basic problems of life have not changed 
然而，归根结底，生活中一些基本的问题还是没有变。