贼头贼脑[zéi tóu zéi nǎo]
词典stealthy：悄悄的，鬼鬼祟祟的。
词典贼头贼脑
词典furtive：鬼鬼祟祟的；诡诈的；贼头贼脑。
词典behaving stealthily like a thief：贼头贼脑。
词典treacherous looks：贼头贼脑。
贼头贼脑[zéi tóu zéi nǎo]
behaving stealthily like a thief; treacherous looks; stealthy; furtive
1. 我常常跟太太说起我对这孩子的看法，太太同意我。她是个贼头贼脑的小家伙。
I've told Missis often my opinion about the child, and Missis agreed with me.
2. 那只猫蜷着它那弯弯的尾巴，用舌头舔着嘴角，贼头贼脑地溜下楼去。
The cat goes furtively downstairs, winding her lithe tail and licking her lips.