Like in high school, every day I would be in school for like six and half hours.

我在高中的时候，每天都会在学校学习六个半小时。

耶鲁的忙碌生活 - SpeakingMax英语口语达人

So I could do that in probably two and a half hours.

我可以用大约两个半小时的时间走完这段路程。

旧金山的公共交通 - SpeakingMax英语口语达人

And if you are prepared to stand up for about two and a half to three hours to watch a play,

而且你要准备好了站上大约两个半小时到三个小时，去看一场戏剧，

莎士比亚环球剧院 - SpeakingMax英语口语达人