The marginal cost of doing something wrong “just this once” always seems alluringly low.

在在做错事时，“就着一次”的边际成本看上去总是很低。

Men must make sure they are coordinated and dress affluently: women love good quality clothes on men. Women need to dress alluringly but not in a cheap way.

男士必须确保他的衣服和谐且高档：女人喜欢穿着有品质的衣服的男人。

Listen up, especially if you're thinking of having a child: a UCLA study has shown that women's voices get higher (and more alluringly feminine) as ovulation (and increased fertility) approaches.

听着，特别是如果你想有一个孩子：一个加州大学洛杉矶分校的研究表明，女性会为排卵(和增加生育能力)而使自己的声音变得更高和更有魅力。