a sly dog

例句：

1. 1. He was a sly dog and always played tricks on his friends.
   他是一个非常狡猾的狗，总是捉弄他的伙伴。
2. 2. The sly dog sniffed around the bushes before making its move.
   狡猾的狗在灌木丛中嗅来嗅去后才开始行动。
3. 3. The dog's sly eyes seemed to read her thoughts.
   那只狗狡猾的眼睛似乎读懂了她的心思。