sly: implies furtiveness, lack of candor, and skill in concealing one’s aims and methods: a ~ corporate-takeover scheme.     (furtive和sly互释)


cunning: suggests the inventive use of sometimes limited intelligence in overreaching or circumventing: relentlessly ~ in her pursuit of the governorship.      如谚语too much cunning can undermine its purpose过多巧思可能事与愿违(聪明反被聪明误)    (overreach越权，circumvent避免或叫塞责)


crafty: implies cleverness and subtlety of method: a ~ trial lawyer.    (subtle指微小的隐藏的)  


tricky: suggests unscrupulous shiftiness and unreliability: a ~ interviewer who usually got what she wanted from her subject.        (unscrupulous不顾忌不择手段)


foxy: implies a shrewd and wary craftiness usually based on experience in devious dealing: a ~ thief got away with her jewels.


artful: implies insinuating or alluring indirectness in dealing and often connotes sophistication or coquetry or cleverness: an ~ matchmaker.       (coquetry假装兴趣奉承without serious intention)


sly诡秘狡猾: 偷偷、不坦诚，巧妙隐藏目的方法，cunning巧思: 想方设法去越权或塞责，crafty机灵: 聪明微妙的，tricky狡猾: 无所顾忌的善变不可靠，foxy狡猾: 聪明又谨慎的机灵，通常惯犯，artful圆滑: 处事委婉吸引人，常表示世故奉承机灵


记忆方法: 1) 首字母FAST CaoCao说曹操曹操到<==狡猾

               2) 狡猾的意思是通过非正当手段达到目的mean attaining or seeking to attain one’s ends by devious means.首字母FAST CaoCao说曹操曹操到<==狡猾       (devious非正当的)