In irrevocable letter of credit in your favour, payable in... against shipping documents.
如果我方接受你方发盘, 将开立以你方为受益人的不可赊销信用证在。。。付款交单。
The decision has been made and is irrevocable.
木已成舟已作出决定, 无法反悔
Jove gives his promise, and confirms it with the irrevocable oath, attesting the river Styx, terrible to the gods themselves.
朱庇特应允了, 还发誓绝不食言, 且指定冥河斯提克斯——众神听了都要发抖的名字——做他的监誓人。
