形容词
中文翻译：未改变的
同义词：
['unchanged', 'unmodified', 'unchanged', 'untouched']
例句：
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1. The painting is unaltered from when it was first created.
这幅画与最初创作时的样子一样。
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2.The report has not been altered since it was submitted.
报告提交后没有修改过。
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3. The original manuscript remained unaltered for centuries.
原始手稿保持原样几个世纪了。