Someone who is monogamous or who has a monogamous relationship has a sexual relationship with only one partner. 单一性伴侣的
adjective [原级] 一夫一妻的;[动] 单配的
Only about five percent of mammals are monogamous. 只有约百分之五的哺乳动物是单一配偶的。
Only about five percent of mammals are monogamous. 只有约百分之五的哺乳动物是单一配偶的。