Neither is public because those not paying can be prevented from receiving the service—by fences or toll barriers.
它们都不是公共的，因为那些未付款者可以被篱笆或路障挡在外面而得不到服务。
2
Kohl's has a thorough website full of advice for customers, as well as a toll-free customer service hotline with representatives available every day of the week.
柯尔公司的网站上有着对客户的全套建议，还有一条节假日不休的免费客服热线。
3
Highway names, entrances and exits, service areas, toll stations, mileage piles.