这两个形容词均含“狡猾的”之意。
cunning : 指凭诡计达到狡诈的目的。
- a cunning plan/ploy
诡诈的计划／花招 - He's a very cunning man.
他为人十分狡猾。 - a cunning liar
花言巧语的骗子 - He was as cunning as a fox.
他像狐狸一样狡猾。
sly : 指竭力掩饰其意图，靠蒙混或表里不一等隐蔽手法达到个人目的。
- He's a sly old devil - I wouldn't trust him with my money.
他是个老滑头——我不会把钱交托给他的。 - a sly political move
诡诈的政治手段 - You sly old devil! How long have you known?
你这个老滑头！你知道有多久了？
