①The L/C is the most widely used instrument of international banking. ②The buyer requests his bank to issue a letter of credit in favor of the seller. Assuming that the credit risk is acceptable to the bank, it issues its letter of credit. The bank has thus substituted it credit for that of the buyer, which might also be good but probably is not as well known. ③The letter of credit also protects the buyer, for he knows that he will not be called upon for payment by his bank until the evidence shows that the shipment has actually been effected.
- 翻译划线句子---自己翻译
- 根据上述一段话，结合自己所学过的专业知识，填写L/C的当事人