名词
中文翻译：永久修改
同义词：
['permanent change', 'permanent alteration']
例句：
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1.The company has decided to make a permanentmodification to its policy.
该公司决定对其政策进行永久性修改。
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2. The software engineer made apermanent modification to the code.
软件工程师对代码进行了永久性修改。
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3. The government has madea permanent modification to the tax system.
政府已经对税收系统进行了永久性修改。