名词
中文翻译：左主支气管
同义词：
['左肺支气管例句：1. The patient was diagnosed with a left principal bronchus obstruction.（患者被诊断出左主支气管阻塞。）2. During surgery', 'the surgeon carefully removed the left principal bronchus to prevent infection.（手术中，外科医生小心地切除了左主支气管以防止感染。）']
例句：
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1. The patient was diagnosed with a left principal bronchus obstruction.
患者被诊断出左主支气管阻塞。
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2. During surgery, the surgeon carefully removed the left principal bronchus to prevent infection.
手术中，外科医生小心地切除了左主支气管以防止感染。
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3.The doctor advised the patient to follow up with an X-ray of the left principal bronchus for monitoring purposes.
医生建议患者进行左主支气管的X光检查以监测病情。