He is a sly dog.

a sly smile/grin/look/glance, etc.

诡秘的微笑、咧嘴一笑、神色、一瞥等

The difference between Sly Stallone and me is that I am me and he is him.

史泰龙和我的分别在于他是他,我是我.

They'd been seeing each other on the sly for months.

他们已经偷偷约会了好几个月。

Don't trust him, he is a sly old fox.

不要相信他, 他是一个狡猾的家伙.

She's a sly puss.

她是个刁滑的姑娘.

She is devious and sly and manipulative...

她阴险狡诈，会玩人。

Brooks is a sly dog.

布鲁克斯是一个狡猾的人.

He leaned forward with a sly smile.

他俯身向前狡黠地一笑。

One day Sly Boy made a mistake.

有一天,鬼小子犯了一个错误.

The girl constantly put herself in Mr. Franklin's way-very slyly and quietly, but she did it.

这姑娘经常在弗兰克林先生面前出现—虽然是偷偷的,悄悄的, 但她总还是这样做了.

Georgos smiled slyly, knowing it was his turn to be superior.

乔戈斯狡猾地笑了笑, 他知道这下该轮到他高人一着了.

He whispered slyly to his brother.

他对他弟弟悄悄地耳语.

She is whispering slyly to her neighbor.

她密向邻座的人耳语.

She ran slyly through the wall.

她偷偷地穿过那堵墙.

He said, shyly and rather slyly.

他迟迟疑疑,躲躲闪闪地说.

I noticed fairly early that her descriptions are slyly non-descriptive.

我很早就注意到她的描写不仅仅是简单描写.

Sincerity should not be reduced to hypocrisy and wIt'slyness.

关怀不该沦为伪善,睿智不该沦为狡猾.

This foolish act went smack against the rules.

这种愚蠢行动直接触犯了规章.

a smack on the jaw

在下巴上打了一拳

She smacked her hand down on to the table.

她啪地一拍桌子。