concubine
/ˈkɑŋkjəbaɪn/ 名词 C2中文： 妾、姨太太、妃、侧室
- A sexual partner, especially a woman, to whom one is not or cannot be married.
- A woman who lives with a man, but who is not a wife.
- A slave-girl or woman, kept for instance in a harem, who is held for sexual service.
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