think的副词形式
thoughtfully adv. 沉思地；体贴地，亲切地；
例句
He lay back on his cushion and paused thoughtfully.
他靠后躺在垫子上，停下来沉思。
We eyed each other thoughtfully.
我们若有所思地看了看彼此。
She rubbed her chin thoughtfully.
她若有所思地抚摩着下巴。
He drew thoughtfully on his pipe.
他若有所思地抽着烟斗。
Martin looked at her thoughtfully.
马丁若有所思地望着她。
Jessica sipped her drink thoughtfully.