We usually accept payment by irrevocable L C payable against shiping documents.
我们一般用不可撤销信用证,凭装运单据结汇付款方式。
We can offer you a price of 8 pounds per item, from 20 days, after which the price will be subject to an increase of 5%.
我们给您报价每件8英镑,有效期20天,过期价格增加5%。