Placing an order-(下定单)

1. （银行授权另一家银行付款的）信用证，信用状
A letter of credit is a letter written by a bank authorizing another bank to pay someone a sum of money. Letters of credit are often used by importers and exporters.

2. （银行为债券担保的）信用证，信用状
A letter of credit is a written promise from a bank stating that they will repay bonds to lenders if the borrowers are unable to pay them.

1. a document issued by a bank that guarantees the payment of a customer's draft
substitutes the bank's credit for the customer's credit