1.表示“不管...”引导让步状语,后加形容词,副词
不管到什么程度, 无论如何
I'll come however busy I am.
我不管怎么忙都会来的.
He can't catch you however fast he runs.
无论他跑得多快,他都赶不上你了.
然而, 可是, 不过（通常后面加逗号）
Later, however, he made up his mind to go.
可是, 后来他决定去了.
It's raining hard. However, I still want to go there.
虽然下着大雨, 我还是想去那儿