"Virtual goods sales already represent the primary source of revenue for social gaming on Facebook," he writes in the new report.
“虚拟产品销售已成为Facebook上社交游戏的主要收入来源，”他在这份新报告中写到。
The distributive justice of "social primary goods" is based on justice social system, justice environment and justice principle.
“社会基本善”的分配公正以正义的社会制度、正义环境和正义原则为基础。
The distributive justice of "social primary goods" is based on justice social system, justice environment and justice principle.
“社会基本善”的分配公正以正义的社会制度、正义环境和正义原则为基础。
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