ventral groove

例句：

1. 1.The ventral groove is a narrow space between the dorsal and ventral sides of the body.
   腹侧沟是身体背侧和腹侧之间的狭窄空间。
2. 2. This species has unique ventral grooves that help them move through their environment.
   这种物种具有独特的腹侧沟，有助于它们在环境中移动。
3. 3.The ventral groove plays a crucial role in the movement of the animal's internal organs.
   腹侧沟在动物内部器官的运动中起着至关重要的作用。