几个小时之后，他们听到了废墟上有脚步压响。

Hours later, they heard crunching footsteps on the rubble.

youdao

不过，几个小时之后，小鼠就几乎只喝糖水了。

However, after several hours, the mice shifted to drinking almost exclusively from the sugar water dispenser.

youdao

本店大甩卖将于明天/今天/几个小时之后结束。

Our Big Sale ends tomorrow/today/in a few hours.

youdao

A weird thing which is discussed in the textbook is if you wait a while and then you try it again with the bell after a couple of hours, the saliva comes back.

教材中讨论了一件奇怪的事情,如果你稍等一会,在几个小时之后用铃声重新去尝试，狗会重新开始分泌唾液。

耶鲁公开课 - 心理学导论课程节选