oogonium

例句：

1. 1.The oogonium is a complex structure that plays an important role in the functioning of the plant.
   oogonium是植物中一个复杂的结构，它在植物的功能中起着重要的作用。
2. 2. The discovery of the oogonium has led to significant advancements in the field of genetics.
   发现oogonium在遗传学领域取得了重大进展。
3. 3.The oogonium is a fascinating subject that requires extensive research and understanding.
   oogonium是一个引人入胜的主题，需要进行广泛的研究和理解。