这是圣地亚哥加利福尼亚大学社会学教授戴维?菲利普斯和他的学生格温德林?巴克的研究结果。
That was the finding of sociology professor David Phillips at the University of California, San Diego, and his student Gwendolyn Barker.
这是圣地亚哥加利福尼亚大学社会学教授戴维?菲利普斯和他的学生格温德林?巴克的研究结果。
That was the finding of sociology professor David Phillips at the University of California, San Diego, and his student Gwendolyn Barker.
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