nest building

• 营巢,筑巢

nest building的用法和样例：

例句

1. The bird is building a nest of straw and twigs.
   这只鸟在用稻草和小树枝筑巢。
2. Cuckoos, as a rule, do not build a nest.
   杜鹃鸟通常不筑巢。