mixed nest

例句：

1. 1. The birds have built a mixed nest in the tree.
   鸟儿们在树上筑了一个混合的巢。
2. 2. The baby squirrels are nestled in the mixed nest of their parents.
   小松鼠们藏在父母混合的巢里。
3. 3. The scientists found that the mixed nests were more likely to be successful than those with only one species.
   科学家们发现，混合巢穴比只有一种物种的巢穴更有可能成功。