ir·rev·o·ca·ble
adjective/ɪˈrevəkəbl/
/ɪˈrevəkəbl/
(formal)- that cannot be changed
无法改变的；不可更改的 - an irrevocable decision/step
最后的决定／一步
Oxford Collocations DictionaryIrrevocable is used with these nouns:- decision
- step
- undertaking
- …
Word Originlate Middle English: from Old French, or from Latin irrevocabilis, from in- ‘not’ + revocabilis ‘able to be revoked’ (from the verb revocare). - an irrevocable decision/step