Warning: file_put_contents(): Only 0 of 6224 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/totle.com.cn/index.php on line 55 unconditioned stimulus英英字典_unconditioned stimulus剑桥英语解释_unconditioned stimulus柯林斯英文解释_乐豆毛深蓝词典
1. N any stimulus evoking an unlearnt response, esp in the context of classical conditioning, in which the conditioned stimulus is followed by the unconditioned one 無條件刺激[psychol]