organ primordium

例句：

1. 1. The development of the brain is a fascinating process that involves the growth and differentiation of organ primordia.
   大脑的发展是一个令人着迷的过程，涉及器官原基的生长和分化。
2. 2.During embryonic development, the formation of organ primordia is crucial for proper organ function.
   在胚胎发育过程中，器官原基的形成对于正常器官功能至关重要。
3. 3. Researchers have discovered that certain genes play a role in the development of organ primordia during fetal life.
   研究人员发现，某些基因在胎儿发育期间对器官原基的形成发挥作用。