名词
中文翻译：底部
同义词：
['bottom', 'base', 'bottom part']
例句：
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1. The car's engine is located at the bottom of the engine compartment.
汽车的发动机位于引擎舱的底部。
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2. The boat was built on a solid bottom.
这艘船建在坚实的底部。
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3. The engineer inspected the foundation for any signs of damage to the building's bottom.
工程师检查了建筑底部是否有任何损害迹象。