她在法庭外踱来踱去。

She ___paced ___back ___and ___forth outside the courtroom.

他不停地踱来踱去，不时看看手表。

He kept ___pacing ___up ___and ___down, glancing at his watch.

他在门厅里踱来踱去，终于瞥见一个人消失在拐角处。

He was ___pacing ___up ___and ___down the entrance hall when finally he caught a glimpse of a person disappearing around a corner.