adj.诡诈的,狡诈的,诡秘的(表示自己知道别人不知道的秘密)
sly的最高级

原形：sly比较级：slier最高级：sliest

I think he is as sly as a fox.
我认为他像狐狸一样狡猾。
He gave me a sly smile and went away.
他狡黠地冲我笑了一笑就走了。
I have to meet him on the sly.
我必须偷偷地和他见面。
He's a sly fox, always managing to avoid trouble.
他是个狡猾的人，总能巧妙地避开麻烦。
She gave me a sly smile when she realized I hadn't noticed her joke.
当她意识到我没注意到她的笑话时，她给了我一个狡黠的微笑。
The sly way he hinted at his promotion made everyone curious.
他巧妙地暗示他的晋升让每个人都很好奇。
The thief was sly enough to evade the security cameras.
那个小偷狡猾到避开了监控摄像头。
The politician had a sly reputation for making backroom deals.
这位政治家以在幕后做交易的狡猾名声著称。
With a sly grin, he revealed his plan to surprise his girlfriend.
他带着狡黠的微笑，透露了他打算给女朋友一个惊喜的计划。
The sly cat sneaked up on the unsuspecting bird.
那只狡猾的猫悄悄接近了毫无防备的小鸟。
He made a sly comment about my new haircut, but I chose to ignore it.
他对我的新发型做了个狡猾的评论，但我选择忽略它。
She's so sly that she managed to convince her parents she needed a new phone.
她很狡猾，竟然说服父母她需要一部新手机。
The salesman used sly tactics to pressure me into buying the car.
销售员使用狡猾的策略来迫使我买车。