名词
中文翻译：内环
同义词：
['internal ring', 'inner ring', 'internal circle']
例句：
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1. Theinguinal ring is the part of the body where the femoral artery and vein meet.
内环是身体上股动脉和静脉相遇的部分。
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2.The inguinal ring can be a source of pain during physical activity.
在运动时，内环可能会引起疼痛。
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3. During surgery, the surgeon carefully removes the inguinal ring to prevent infection.
在手术中，外科医生小心地移除内环以防止感染。