orifice of vermiform appendix

例句：

1. 1.The surgeon carefully removed the tumor from the patient's orifice.
   外科医生小心翼翼地从病人的开口处取出了肿瘤。
2. 2. The scientist observed the behavior of the animals through their orifices.
   科学家通过动物的开口观察它们的行为。
3. 3.The fisherman used a net to catch the fish by piercing its orifice.
   渔夫用网穿过鱼的开口来捕捉鱼。