不可撤销信用证
bù​kě​chè​xiāo​xìn​yòng​zhèng

irrevocable letter of credit

  1. 不可 bù​kě auxiliaryadjective
    cannot
    to be unable to; to be impossible
  2. 撤销 撤銷 chè​xiāo verb
    to cancel
    to repeal, revoke, or rescind; to undo an action in a computer program
  3. 信用证 信用證 xìn​yòng​zhèng
    letter of credit
    A document issued by a bank guaranteeing payment to a seller provided that specific conditions are met, commonly used in international trade