形容词
中文翻译：内部的
同义词：
['inside', 'internal', 'core', 'innermost']
例句：
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1. The book is on the shelf inside the library.
这本书在图书馆里的书架上。
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2. She kept her secret to herself and never told anyone about it.
她保守秘密，没有告诉任何人。
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3. The planet is located in the innermost part of our solar system.
这个行星位于我们太阳系的最内侧。