sly

1. ADJ A sly look, expression, or remark shows that you know something that other people do not know or that was meant to be a secret. (眼神、表情或话语) 会意的

His lips were spread in a sly smile. 他的双唇在会心的微笑中张开。

2. slylyADV 会意地

Anna grinned slyly. 安娜会意地咧嘴笑了。

3. ADJ If you describe someone as sly, you disapprove of them because they keep their feelings or intentions hidden and are clever at deceiving people. 虚伪的; 狡诈的[表不满]

She is devious and sly and manipulative. 她阴险、狡诈，而且爱操纵他人。