他对基本安全规程的完全无视导致了一场事故，伤及两名同事。
His arrant disregard for basic safety protocols caused an accident that injured two coworkers.
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解释
arrant 是形容词，意为"完全的、十足的"，强调某人完全缺乏应有的谨慎或责任心。
His arrant disregard for basic safety protocols caused an accident that injured two coworkers.
arrant 是形容词，意为"完全的、十足的"，强调某人完全缺乏应有的谨慎或责任心。