1. 先天反射：inborn 天生的 | inborn reflex 先天反射 | inbred 近亲交配
2. 先天性反射：先天性代谢错误 inborn errors of metabolism | 先天性反射 inborn reflex | 自交 inbreed
3. 先天反射,固有反射：inborn error of metabolism ==> 先天代谢病 | inborn reflex ==> 先天反射,固有反射 | inbound track ==> 到着線
1. Conditioned reflexes are acquired instead of being inborn. They are a kind of reflex that is learned when adapting to the environment.
条件反射是动物和人后天获得的，是个体生活过程中适应环境变化并经过学习学会的反射。
noun
1. an automatic instinctive unlearned reaction to a stimulus
Synonym: reflex reflex response reflex action instinctive reflex innate reflex unconditioned reflex physiological reaction