Warning: file_put_contents(): Only 0 of 6103 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/201990.com/index.php on line 55 substantia nigra英英字典_substantia nigra剑桥英语解释_substantia nigra柯林斯英文解释_耀久九英英词典
1. N a layer of grey matter in the brain that produces dopamine and contains pigmented nerve cells, loss of which has been associated with Parkinson's disease 灰质