usual terms造句怎么写

Our usual terms of payment are by confirmed, irrevocable letter of credit in our favor, reaching us one month ahead of shipment.

Our usual terms of payment are confirmed, irrevocable letter of credit by sight draft against presentation of shipping documents.

Some details of your own business, such as the kind of goods handled, quantities needed, usual terms of trade and any information likely to enable the supplier to decide what he can do for you, will also help.