台湾籍旅美老师今天交给我们的句子是：
One possibility is that jealousy evolved in species that have multiple young competing for parental resources, such as food, care, and affection.有一种可能性是，嫉妒心是在有许多幼体的物种在争夺父母的资源时所演化出来的产物，这些资源如食物、关心、影响力。
