英语释义
1. the usually green outer whorl of a flower consisting of separate or fused sepals
2. a cuplike division of the renal pelvis surrounding one or more renal papillae
3. a cup-shaped animal structure (such as the body wall of a crinoid)
4. the usually green outer part of a flower consisting of sepals
5. a cuplike division of the renal pelvis surrounding one or more renal papillae