筑巢的

例句：

1. 1. The bird built a new nest in the tree.
   那只鸟在树上筑了一个新巢。
2. 2. The baby squirrel is building its first nest.
   小松鼠正在建造它的第一个巢。
3. 3. The old woman was sitting on her nest watching the sunset.
   那位老妇人坐在她的巢里看着日落。