有一天他离开了，消失得无影无踪。

One day he left, disappeared without a trace.

《柯林斯英汉双解大词典》

我的企盼就是有一天他能重新走路。

My prayer is that one day he will walk again.

《牛津词典》

这一天他没有去办公室上班。

He had absented himself from the office for the day.

《牛津词典》

Now, I know it's easy to look at me and say, "God, there's an old leftie, why doesn't he grow up?"

如今,我知道你轻易就可以看着我感叹,"天啊,这个老左派,他怎么还不成熟起来"

耶鲁公开课 - 1871年后的法国课程节选

So obviously, not a good thing, but amazingly easy to fall into this trap.

天呐，他真棒，所以很明显，这不是一件好事，但是很容易上当。

麻省理工公开课 - 计算机科学及编程导论课程节选

Quote "On the 24th day, as we were having our breakfast, a ship appeared at last."

他写道，第24天，我们正在吃早餐，终于有船来了“

耶鲁公开课 - 公正课程节选