pupillary

例句：

1. 1. The doctor examined the patient's pupils to determine if they were dilated.
   医生检查了患者的瞳孔，以确定它们是否扩大。
2. 2. The scientist observed the pupils of the animals to study their behavior.
   科学家观察了动物的瞳孔，以研究它们的行为。
3. 3. The photographer focused his camera on the subject's pupils to capture a clear shot.
   摄影师将相机对准了被摄物体的瞳孔，以捕捉清晰的镜头。