預付的英語翻譯：

advance; prepay
【經】 cash in advance; make advance; pay in advance; payment in advance
prepay; prepayment

購買的英語翻譯：

buy; detriment; purchase
【經】 buy; purchase; purchases

材料的英語翻譯：

data; datum; makings; material; stuff
【醫(yī)】 data; datum; material; stock
【經】 material; materials; spoilage

款的英語翻譯：

entertain; fund; paragraph; sincere
【法】 item; sub-paragraph; sub-section