Warning: file_put_contents(/www/wwwroot/ppbbu/80125.cn/cache/96e49597d439f6481edc74e97f37ab68.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/80125.cn/index.php on line 58 unconditioned stimulus英英字典_unconditioned stimulus剑桥英语解释_unconditioned stimulus柯林斯英文解释_食材鋪反向词典
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]