paramour
n. 情夫,情妇,<古>情人
Someone's paramour is their lover.
1. a woman's lover
2. a woman who cohabits with an important man
" Thou hast kept the secret of thy paramour.
“ 你始终不肖泄露你的奸夫.
Caines ( 1975 ) on the ease of a finite paramour set.
Caines1975年对有限参数集合情形下的工作.