名词
中文翻译：外部开口
同义词：
['outer opening', 'outlet例句：1. The external orifice of the pipe is where air enters and leaves.（管道的外部开口是空气进入和离开的地方。）']
例句：
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1. The external orifice of the pipe is where air enters and leaves.
管道的外部开口是空气进入和离开的地方。
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2. The doctor advised him to take medication regularly for his external orifice condition.
医生建议他定期服用药物，以治疗他的外口状况。
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3.The scientist discovered a new method to treat external orifice diseases.
科学家发现了一种新的方法来治疗外口疾病。