Previous studies had shown that two-year-old children can help others, which is considered a sign of altruism, and that those who are between six and seven years old show a sense of fairness.

之前的研究已经表明，两岁的孩子已经学会了帮助他人，这就是利他主义的表现之一；而那些六岁到七岁之间的小孩则表现出公平感。

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It was a lovely day at the park and Stella Bianchi was enjoying the sunshine with her two children when a young boy, aged about four, approached her two-year-old son and pushed him to the ground.

今天天气很好，斯特拉·比安奇带着两个孩子在公园里享受阳光，这时一个大约四岁的小男孩走近她两岁的儿子，把他推倒在地。

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Jenifer received great support from her family as she worked to earn her degree: Her husband worked two jobs to cover the bills, and her 68-year-old mother helped take care of the children at times.

詹妮弗在努力攻读学位的过程中得到了家人的大力支持：她的丈夫做两份工作来填补开销，她68岁的母亲有时会帮忙照顾孩子。

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Ms. Morrongiello, the Canadian psychology professor, says that information she collected from 62 families with two-year-old children revealed that 67% of injuries occurred when a parent wasn't supervising or was only listening intermittently, and only about 10% occurred when a parent was watching.

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The 34-year-old director has two children - Casper, two, and six-month-old Clementine - with his supermodel wife, Claudia Schiffer.

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The study, led by first author Peter Ducharme, MSW, a clinical social worker at Boston Children's, compared two groups of 9- to 17-year-old children admitted to the hospital's Psychiatry Inpatient Service who had high levels of anger.

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