postsacral造句

例句与造句

1. The vertebral column is differentiated into presacral, sacral, and postsacral or caudal vertebrae.
2. These dorsoventral-oriented feathers have clearly-defined barbs and comprise at least six pairs of short ( 45 mm ) feathers to the proximal postsacral vertebrae, and another ten or eleven pairs of tail feathers with lengths up to 87 mm, which decrease in length up to the terminal vertebra.
3. It's difficult to find postsacral in a sentence. 用postsacral造句挺难的