Para.9 1.To pay for roads and transport costs,cars will be billed for using high-speed toll roads. 1)bil:vt.“开账单给”；n.“账单” e.g. We were billed for three nights when we were only there for two nights. 我们只在那里住了两晚，却被要求付三个晚上的 费用。 electricity/gas/.phone bill电费煤气/电话单1. To pay for roads and transport costs, cars will be billed for using high-speed toll roads. 1) bill: vt. “开账单给······”；n. “账单” e.g. We were billed for three nights when we were only there for two nights. 我们只在那里住了两晚，却被要求付三个晚上的 费用。 electricity/gas/phone bill电费/煤气/电话单 Para. 9