名词
中文翻译：Unknown
同义词：
['脑膜，脑膜层例句：1. The epidural layer is important for pain relief during childbirth.（硬膜外层在分娩时对缓解疼痛非常重要。）2. The epidural layer helps to protect the spinal cord from injury.（硬膜外层有助于保护脊髓免受损伤。）']
例句：
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1. The epidural layer is important for pain relief during childbirth.
硬膜外层在分娩时对缓解疼痛非常重要。
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2. The epidural layer helps to protect the spinal cord from injury.
硬膜外层有助于保护脊髓免受损伤。
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3.The epidural layer is a thin layer of tissue that separates the brain from the spinal cord.
硬膜外层是一层薄组织，将大脑与脊髓分隔开。