谁能告诉我下面这些词组在贸易函电中用英语怎么写？

还盘: counter - offer
询盘: inquiry
报盘: offer
订货: place order
利润: profit
持久耐用: durable
物美价廉: bargain
很大需求: keen demand
业务关系: business relation
经营范围: business scope
现货供应: spot transaction
用铁箍加固: fasten with hoop iron
催促装运: urge shipment
订舱: booking vessel, booking shipping space
信用证修改通知书: L/C amendment
随信附寄: enclosed with letter
另寄: send separately
折扣: discount
即期信用证: sight letter of credit
执行订单: fullfillment
转运: transhipment
分批装运: partial shipment
目录本: brochure, catalogue
产品说明书: product instruction
开立信用证: open letter of credit
保兑的信用证: confirmed letter of credit
不可撤销的信用证: irrevocable letter of credit
汇票: draft
议付: negotiation
代理: agent
以我方为受益人: draw on us as beneficiary
保险费: premium
运费: freight