形容词
中文翻译：Unknown
同义词：
['irreversible', 'unchangeable', 'inflexible', 'irrevocable']
例句：
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1. Thedamage to the bridge was so severe thatit could not be repaired.
桥梁损坏严重，无法修复。
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2. The decision to moveforward was irreversible.
决定向前推进是无可挽回的。
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3. The law is unchangeable, and once it is written, it cannot be changed.
法律是不可改变的，一旦写下来就不能更改。