1·In many non-Western societies, however, monogamy has never dominated.
然而，在很多非西方社会，一夫一妻制从未占主导地位。
—— 《柯林斯英汉双解大词典》
2·People in rich countries value monogamy and tend not to stray often.
富裕国家的人重视一夫一妻制，并倾向于不经常出轨。
3·The gay-rights struggle had given gay men greater freedom and acceptance, and the aids epidemic had made monogamy more appealing.
同志权益斗争给予男同志更多的自由和包容度，而艾滋病的流行也让一夫一妻制更有吸引力。
4·Monogamy is pretty rare among lizards, but these skinks are the exception.
蜥蜴界的一夫一妻制很少见，但是这些糙背蜥蜴是例外。
5·Monogamy is surprisingly common for birds, but swans are one of the most famous examples.
一夫一妻制对鸟类来说十分普遍，但最出名的要数天鹅了。