常用的表示转折的词有：
1 despite,in spite of,
2 although ,though,while,but ,
3 nevertheless,however,
4 no matter how / what / when ,
5 whatever ,whenever ,whichever ,
6 还有这一句：
Hard as / that / though she works,she has achieved little.
(不管它们在句中的任何位置)