one day
01
有一天, 总有一天
a time in the future, often implying hope or an uncertain expectation that something will happen at some point
例子
One day, we'll look back at these times and laugh.
有一天，我们会回顾这些时光并笑出来。
One day, I hope to travel around the world.
有一天，我希望环游世界。
1.1
有一天, 一次
an unspecified or indeterminate time in the past, often used to introduce a past event or experience
例子
One day, I found a letter from my old friend hidden in a drawer.
有一天，我在抽屉里发现了一封来自我老朋友的信。
We decided to take a road trip with no particular destination in mind one day.
我们决定有一天进行一次没有特定目的地的公路旅行。
