名词
中文翻译：内部
同义词：
['inner', 'innermost']
例句：
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1. The scientist conducted an experiment to study the behavior of animals within a confined space.
科学家进行了一项实验，以研究动物在封闭空间内的行为。
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2. She was deeply moved by the story and felt as if she were inside the characters' minds.
她被这个故事深深打动，感觉就像自己置身于角色的内心世界。
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3. The company's decision to invest in new technology was seen as a move into the future.
公司决定投资新技术被视为迈向未来的举动。