floral nectary

例句：

1. 1. The bees are busy collecting nectar from the flowers.
   蜜蜂们正忙着从花朵中收集花蜜。
2. 2.The flower nectary is a small sac at the base of the petals.
   花蜜腺是花瓣底部的一个小囊。
3. 3.The nectar inside the flower nectary is rich in sugars and nutrients.
   花蜜腺内的花蜜富含糖分和养分。