Before I could do any downloads, I waited until the first day of the next month when the air-card service provider reset the data-transfer counter to zero on my primary computer.

在我进行下载之前，我等到了下一个月的第一天，因为在这一天，我的无线卡服务提供商会把我主计算机上的数据传输量归为零。

youdao

United Parcel Service (UPS): UPS Next Day Air, UPS Next Day Air Saver, UPS 2nd Day Air, UPS 2nd Day Air A.M.

FORBES: Tomorrow's Tax Deadline Pushed Off For Some Taxpayers