developmental stage

• 发育阶段

developmental stage的用法和样例：

例句

1. This marks the end of the cleavage stage of development.
   这标志着卵裂发育阶段的结束。
2. Study on the Caloric Value of Organs at the Different Development Stages of Moringa sp.
   辣木植物器官不同发育阶段的热值研究。