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单词 sympathetic nervous system
释义
sympathetic nervous system
n.
The part of the autonomic nervous system originating in the thoracic and lumbar regions of the spinal cord that in general inhibits or opposes the physiological effects of the parasympathetic nervous system, as in tending to reduce digestive secretions, speed up the heart, and contract blood vessels.
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更新时间:2025/3/22 10:23:11