a nest of

例句：

1. 1.The birds are building a nest in the tree.
   鸟儿们在树上筑巢。
2. 2.She found a nest of eggs under the eaves.
   她在屋檐下发现了一个蛋巢。
3. 3.The baby bird is learning to build its own nest.
   小鸟正在学习自己筑巢。