suī rán / tā / kàn qǐ lái / hěn / huá tóu huá nǎo / dàn / cóng lái / méi / zuò guò / shāng tiān hài lǐ / de / shì

虽然他看起来很滑头滑脑，但从来没做过伤天害理的事。

Although he looks slick and sly, he has never done anything really harmful.