be a headache ⇒ 他让父母伤脑筋。 Tā ràng fùmǔ shāng nǎojīn. → He's a headache for his parents.
油头滑脑
slick
肝脑涂地
lay down one's life
贼头贼脑
behave furtively ⇒ 瞧他贼头贼脑的样子就不像好人。 Qiáo tā zéi tóu zéi nǎo de yàngzi jiù bù xiàng hǎorén. → Look at him going around so furtively — surely he's up to no good.
笔记本电脑
laptop
English translation of '脑'
脑 (腦)
(nǎo)
名
(生理) brain
(= 脑筋) brain
⇒ 他不爱动脑。 (Tā bù ài dòngnǎo.) He's not in the habit of using his brain.