“好吧，”他说，“你呆呆地在想什么呀？那严肃的笑容是什么意思？”

Well, said he, what are you musing about? What does that grave smile signify?

youdao

你呆呆地注视着窗外几分钟了，你在想什么？

You've been staring blankly out of the window for several minutes; a penny for your thoughts.

youdao