billing expenses 中文意思是什麼
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A monthly cell - phone service bill, for instance, contains charges for leasing radio spectrum, renting cell towers and purchasing the handset, as well as the amortization of the hardware at the cell base site, the cost of interconnections among cell sites, billing expenses and network operator profit
舉例來說，行動電話的月租費通常包含使用無線電頻譜、租用基地臺和購買手機，以及攤提行動電話基地臺硬體、基地臺之間的連接費用、計費成本和網路系統業者的利潤等。
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