它很便宜，但在另一方面，质量很差。(on the other hand )

翻译：tangiblebenefit

英译汉：Developmentofexchangesthataggregatetheinformationharvestedbybotsinordertoreducetransactioncostsandeliminateconcernsoffraud;and

翻译：market share

发票;发货单 n. i_______________