prepaid fare system预付: payment in advance收费: collect fees; charge系统: system收费系统: billing system; charging system; electronic toll collection; etc道路收费系统: road toll system; toll road下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:预付收费系统,即可在微信中查询翻译