胚珠

例句：

1. 1.The seed inside the fruit is calleda seed or a nutritiousembryo.
   果实内部的种子被称为种子或营养胚胎。
2. 2. The plant's life cycle beginswith the formation of an embryo in theovary.
   植物的生命周期始于卵巢中胚囊的形成。
3. 3. The development of theembryo is crucial for the growth and survivalof the plant.
   胚胎的发展对植物的生长和存活至关重要。