Definition: to live in a nest or build a nest Level: C2
屋顶下有鸟儿筑巢。
There are birds ___nesting under the roof.
如果你周日上午沿着小路散步，可以看到知更鸟在古老的忍冬灌木中筑巢。
If you stroll along the path on a Sunday morning, you can see robins ___nesting in the old honeysuckle bush.
许多鸟儿选择在高大的树上筑巢以确保安全。
Many birds choose to ___nest in tall trees for safety.
