Bir gün Amerika'ya gitmek istiyorum.
- I would like to go to the United States one day.
Bir günde 500 dolar harcadım.
- I've spent 500 dollars in one day.
Tom onu günün birinde ödeyecek.
- Tom will pay for it one day.
One day I shall upgrade my software, but not just yet.
One day I was playing with a girl from my class.