DHL eTrack can track up to 50 air waybills at one time and operates on any e-mail-enabled device, whether it be a PC, mobile phone or handheld device.是什么意思_DHL eTrack can track up to 50 air waybills at one time and operates on any e-mail-enabled device, whether it be a PC, mobile phone or handheld device.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句