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adj.不可改变的；不能取消的；不能挽回的
1、irreprovable───不可挽回的
2、invocable───调用
3、irremovable───adj.不能免职的；不能移动的
4、irresolvable───adj.不能解决的；不能分解的
5、irreformable───adj.难以纠正的；不可改造的
6、evocable───adj.可唤起的；可引起的
7、irrevocably───adv.不能取消地；不能撤回地
8、revocable───adj.可撤销的；可废除的
9、irrevocableness───不可撤销性
1、Thank you for the receipt of an Irrevocable Letter of Credit No. NW-4512 established through the Bank of China for the captioned order.───贵方通过中国银行开立的用于支付标题所示订单的第NW—4512不可撤销信用证已收到，谢谢。
2、Miss Bulstrode did not answer . She was hovering on the brink of irrevocable words.───布尔斯特罗德XiaoJie没有回答。她正处于话一出口便不可挽回的关头。
3、bank has made out an irrevocable letter of credit.───银行开出了不可撤销的信用证[状]。
4、Did not give notice within the prescribed time or specify the claim is based, will constitute an irrevocable acceptance of these products.───未在规定时间内发出通知或未具体说明索赔依据的，则构成不可撤销地接受上述商品。
5、How irrevocable would have been his knowledge of it, if he had remained with me but another hour!───只要他在我那儿再多等一个小时，他就会知道我的想法，一切都将无可挽回！
6、Yet the point of the currency union was that it was irrevocable.───然而，这个货币联盟的特点在于：它是不可取消的。
7、He said the decision was irrevocable.───他说过这项决定是不可改变的。
8、We are prepared to accept payment by confirmed irrevocable L/C.───我方接受保兑的，不可撤销的信用证付款方式。
9、Payment should be made under an irrevocable letter of credit which is to be opened in our favour within a week after the date of your order.───付款前提，在你方定货后一个礼拜内开立以我方为受益人的，不可打消的信用证。
1、He said the decision was irrevocable.