single
/ˈsɪŋ.ɡəl/
形容词
单身的,未婚的
He's been single for so long now, I don't think he'll ever marry.
他这么长时间一直单身,我认为他永远不会结婚了。
单一的,仅有一个的
Not a single person offered to help her.
没有一个人主动出来帮她。
唯一的
Patience is the single most important quality needed for this job.
耐心是这项工作所需最重要的特质。