名词
中文翻译：Unknown
同义词：
['main disk', 'primary disk']
例句：
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1. The main disk of the computer is where all the important data is stored.
计算机的主硬盘是存储所有重要数据的地方。
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2. The main disk is full of useful information about the history of the country.
主硬盘里充满了有关该国历史有用的信息。
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3. The main disk has been corrupted and needs to be replaced.
主硬盘已损坏，需要更换。