someday
adverb uk/ˈsʌm.deɪ/ us/ˈsʌm.deɪ/
（将来）有一天，有朝一日
at some time in the future that is not yet known or not stated
Maybe someday you'll both meet again. 也许有一天你们两个还会见面。
Someday soon you're going to have to make a decision. 不久后的某一天，你就需要作出决定。