late 15c., "not arrested or seized," from un- (1) "not" + past participle of attach (v.). Meaning "not associated with any body or institution" is recorded from 1796; sense of "single, not engaged or married" is first attested 1874.
权威例句
1. I knew only two or three unattached men.
我只认识两三个未婚的男士。
2. He was still unattached at the age of 34.
他34岁时还是单身。
3. The centre is unattached to any hospital or clinic.
这个中心不附属于任何医院或诊所.
4. As an unattached subject, accounting has its own rule.
摘要会计学作为一门独立的学科, 有其自身特有的规律.
5. The structure that best served her purpose was to unattached.