“three-tier system--three-tier system (importers, wholesalers and retailers)”概念、定义、翻译-科学时代

单词	three-tier system--three-tier system (importers, wholesalers and retailers)
释义	国际贸易词汇手册 three-tier system (importers, wholesalers and retailers) 三级制（进口商、批发商及零售商）
随便看	HN混合器 Hoa Binh culture hoagie hoagy hoard hoarding hoarding hoarding hoarding hoarding of stock Hoare-Laval Pact hoar frost hoarfrost hoarhound hoarseness or aphonia due to exogenic impairment of lung hoarser hoary cress hoary willow hoax hoax hob hob Hoba meteorite Hobbes，Thomas hobbing clysis dumpling-maker

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

three-tier system (importers, wholesalers and retailers)