however

无论如何；不管怎样（接副词或形容词）；然而；可是英释中释advused when you are adding a fact or piece of information that seems surprising, or seems very different from what you have just said

无论以何种方式; 不管怎样英释中释conjin whatever way

1 This is a cheap and simple process. However, there are dangers..这是个花钱少而又简单的方法，不过有危险。

2 an extremely unpleasant disease that is, however, easy to treat.一种让人极其难受却容易治疗的病