名词
中文翻译：工具持有
同义词：
['tool control', 'tool possession']
例句：
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1.The engineer was holding the tools to demonstrate their effectiveness.
工程师正在展示工具的有效性。
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2. The child held a small hammer in his hand.
孩子手里拿着一把小锤子。
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3. The scientist holds the key to unlocking this new technology.
科学家掌握着解锁这项新技术的关键。