Mary Alvord is a clinical psychologist in Silver Spring, Md.
玛丽·阿佛德是银泉的一位临床心理学家。
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"I call it Grandma's rule, " Alvord says. "No dessert until you finish your dinner."
“我称它为奶奶的规则，”阿佛德说，“只有你吃完饭才有甜品。”
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"If you avoid people, you isolate, and if you isolate, you are lonely, " said Mary Alvord, a Montgomery County, Md., psychologist with an interest in social networking.