1、hours意思是：小时(工作、办公等的)固定时间。

2、例句：

Getting there would take hours.去那里要花很长时间。

He recalled her devotion to her husband during his hour of need.他回忆起她在丈夫困难之时的忠贞奉献。

The treatment should be repeated every two to three hours.这种治疗方法应该每隔两到三小时重复一次。