blind sac造句

例句与造句

1. The lip pits extend into the orbicularis oris muscle, ending in blind sacs surrounded by mucous glands.
2. In cnidarians, the gastrovascular system is also known as the "'coelenteron "', and is commonly known as a " blind gut " or " blind sac ", since food enters and waste exits through the same orifice.
3. It's difficult to find blind sac in a sentence. 用blind sac造句挺难的