名词中文翻译1
中文翻译：Unknown
同义词：
['opening', 'aperture', 'orifice']
例句：
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1. The bellmouthed opening of the door is wide enough for two people to pass through.
门的开口足够大，可以容纳两个人通过。
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2. The engineer carefully inspected the bellmouthed opening of the pipeline.
工程师仔细检查了管道的开口处。
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3. The scientist discovered a bellmouthed opening in the rock that led to an underground cavern.
科学家在岩石中发现了一个开口，通往一个地下洞穴。