secondary conditioned reflex

例句：

1. 1. The child's second-grade teacher noticed thathe had a tendency to be overlycritical of himself.
   孩子的二年级老师注意到他有一种过分苛责自己的倾向。
2. 2. The researcherfound that the animal's secondary conditioned reflex was triggered by the soundof its own name.
   研究者发现，动物的次级条件反射是由它自己的名字所触发的。
3. 3. The patient's secondaryconditioned reflexes were significantly improvedafter the treatment.
   经过治疗后，患者的次级条件反射显著改善。