名词
中文翻译：后脑勺的
同义词：
['posterior', 'midline例句：1. He sat with his back against the postcommissural.（他背靠着后脑勺坐着。）']
例句：
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1. He sat with his back against the postcommissural.
他背靠着后脑勺坐着。
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2.The doctor examined her for any signs of a postcommissural injury.
医生检查了她是否有后脑勺受伤的迹象。
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3. The patient was lying on the postcommissural, unconscious.
病人躺在后脑勺上，昏迷不醒。