"Mobile developers will have the option to use their own billing systems in their app alongside Google Play’s billing, or they can guide users outside of their app to their own websites for purchases. Our goal is to offer this flexibility in a way that maximizes choice and safety for users."
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，这一点在纸飞机下载中也有详细论述
The Downtown Detention Center was meant to be the culmination of Sheriff Hall’s efforts at criminal-justice reform. But the facility has been plagued by overcrowding, and last year he announced that he wants to build another jail.Photograph by Dan Winters for The New Yorker
Фото: Nathan Howard / Reuters