名词
中文翻译：前缘
同义词：
['frontal line', 'frontal edge']
例句：
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1.The surgeon carefully removed the tumor from the patient's frontal margin.
外科医生小心翼翼地从病人的前缘切除了肿瘤。
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2.The researcher found that the frontal margin of the brain is crucial for memory formation.
研究者发现，大脑的前缘对于记忆形成至关重要。
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3. The frontal margin of the table was scratched by a sharp object.
桌子的前缘被尖锐的物品刮伤了。