名词
中文翻译：上段支气管
同义词：
['superior segmental bronchus', 'superior segmental bronchiole', 'superior segmental bronchial tube例句：1. The upper part of the lung is where the superior segmental bronchus branches off.（肺部的上部是上段支气管分支的地方。）']
例句：
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1. The upper part of the lung is where the superior segmental bronchus branches off.
肺部的上部是上段支气管分支的地方。
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2.The superior segmental bronchus is responsible for delivering oxygenated blood to the alveoli.
上段支气管负责将氧气化的血液输送到肺泡。
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3.In some cases, the superior segmental bronchus may become blocked, leading to difficulty breathing.
在某些情况下，上段支气管可能会被阻塞，导致呼吸困难。