有朝一日直译过来:someday或者one dat或者when the day comes具体的也看上下文,如:He dreams of one day becoming a famous violinist.他梦想有朝一日成为着名的小提琴家. Humans may be able to live in the depths of the ocean some day.有朝一日人类也许能在海洋深处生活。
one day
One day
some day