名词
中文翻译：内部部分
同义词：
['internal part', 'interior section', 'interior component']
例句：
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1. The interiorportion of the car is where all the electronics are located.
汽车的内部部分是所有电子设备所在的地方。
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2. The interior portion of the building was damaged during the fire.
大楼的内部部分在火灾中受损。
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3. The engineer carefully inspected the interior portion of the machine to ensure it was functioning correctly.
工程师仔细检查了机器的内部部分，以确保它正常工作。