flat rate system定额: quota; quantum; norm; allotm ...收费制: tariff收费制: rate system; rating system; tariff system定额收入: establishmen超额收费: excess of rates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:定额收费制，即可在微信中查询翻译
