例句與造句

1. The LEC billing system is subject to abuse by vendors.
2. LEC billing is permitted in the long distance business; each client would otherwise receive multiple monthly bills ( one for local service, one for long distance ).
3. There is no LEC billing for alternate long distance carriers in Canada as Bell Canada and Telus remain in the long-distance business and do not collect on behalf of their competitors.
4. LEC billing consolidated charges from multiple vendors on one bill, but opened an opportunity ( which does not exist elsewhere ) for fraudulent vendors to add their own charges to the consolidated bills.
5. It's difficult to find lec billing in a sentence. 用lec billing造句挺難的