可可电台，每期节目一话题，让英语磨练耳朵的同时学到更多有益的小知识，丰富知识的同时受益于生活。

细节改变生活

Longevity

长寿

Using data from about 10,000 adults tracked over 50 years, scientists discovered that volunteering, especially for altruistic motives, can be a life saver.

根据对10000个成年人长达50年的追踪研究，科学家发现，志愿活动尤其是那些无私利心的，可以是救命稻草。

People who reported giving their time because they wanted to help others outlived those who didn't volunteer at all, as well as those who did so mostly for their own satisfaction。

那些花时间帮助别人的人们要比其他人更加长寿，即使他们帮别人只是为了自己开心。

【知识点津】

altruistic adj.利他的，无私心的

例句：

Foster the good quality of altruistic, friendly affection as a child.

从小培养起无私 、 友爱的优良品质.

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