劍橋詞典done or available from within an app (= piece of software for your phone or computer that has a particular purpose ) （計算機或手機）應(yīng)用程序所提供的 in-app advertising /billing 應(yīng)用程序中帶的廣告／支付機制 The map feature is available as an in-app purchase . 返回 in-app