hypoplasia of the sacrum造句

例句与造句

1. "' Caudal regression syndrome "'or "'sacral agenesis "'( or hypoplasia of the sacrum ) is a congenital disorder in which there is abnormal fetal development of the lower spine the caudal partition of the spine.
2. It's difficult to find hypoplasia of the sacrum in a sentence. 用hypoplasia of the sacrum造句挺难的