cropped ear

例句：

1. 1. The farmer carefully clipped the ears of his cows before milking.
   农民在挤奶前仔细修剪了牛的耳朵。
2. 2. The veterinarian inspected the animal's cropped ear and determined it was healthy.
   兽医检查了动物的剪耳，并确定它健康。
3. 3. The owner of the farm kept their livestock in a pen to prevent cropped ear diseases.
   农场主将他们的牲畜关在一个围栏里，以防止剪耳病。