dorsal blastoporal lip

例句：

1. 1. The dorsal lip of the butterfly is responsible for its ability to fly.
   蝴蝶的背侧唇瓣负责其飞行的能力。
2. 2.During embryonic development, the dorsal lip serves as a barrier between the developing brain and the neural tube.
   在胚胎发育过程中，背侧唇瓣作为大脑和神经管之间的屏障。
3. 3. In some species, the dorsal lip can be modified to aid in feeding or locomotion.
   在某些物种中，背侧唇瓣可以被修改以帮助进食或移动。