sometime

某个时候、改天、哪天

Let's grab coffee sometime next week, if you're free.

你如果有空，下周我们找个时间去喝咖啡。

曾经、某时

The letter was written sometime in the late 1800s.

这封信写于一八○○年代末的某个时候。

从前的、前任的正式；置于名词前

He was introduced as a sometime adviser to the mayor.

他被介绍为市长的前任顾问。