男性和女性在短期择偶欲望上存在差异，因为这对我们祖先的繁殖利益和代价不同。
"Men and women differ in their desires for short-term mating because the reproductive benefits and costs differed for our ancestors."
Sustainability isn't a trend; it's the foundation of responsible business.
"The truth is often hidden in the most unexpected places."
从本质上来讲，儿童的爱是单纯的，他爱，是为了获得感官印象，这种印象又给他提供了生长的养料。