| 单词 | placenta |
| 释义 | placenta A structure in the pregnant uterus for nourishing a viviparous fetus with the mother's blood supply; formed from the uterine lining and embryonic membranes. |
| 随便看 |
|
科学参考收录了15208条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。