Some of you may enjoy doing crossword puzzles, and perhaps doing crossword puzzles a couple hours a day is enjoyable.

有人可能爱玩填字游戏，也许每天玩几小时的,填字游戏，依然让人兴致盎然。

耶鲁公开课 - 死亡课程节选

How many hours do the students take classes usually?

学生们通常上几小时的课？

很好奇住宿生活 - SpeakingMax英语口语达人

And then after a few minutes or maybe an hour, you hopefully have at least one dancing cookie.

几分钟或者可能一小时过去后，你颇有希望地拥有至少一个会跳舞的饼干人。

哈佛公开课 - 计算机科学课程节选