“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。

"Virtual goods sales already represent the primary source of revenue for social gaming on Facebook," he writes in the new report.

youdao

这份报告我一直写到凌晨四点。今天精神特别不好，我都不能正常思考了。

I was up till four in the morning writing this report. Today, my semisomnia's so bad I can't think straight.

youdao