形容词
中文翻译：打印机忙
同义词：
['busy', 'occupied', 'in use']
例句：
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1. The printer is currently busy printing documents.
打印机正在忙于打印文件。
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2. The printer is busy with the final draft of the report.
打印机正忙于撰写报告的最终草稿。
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3. The printer is busy with a large volume of work.
打印机正忙于处理大量的工作。