指甲和鸟喙的组成成分都相同。

Fingernails are made from the same substance as a bird's beak.

youdao

那种鸟雄鸟的喙呈橙色，与雌鸟不同。

The male's orange beak differentiates it from the female.

youdao

重要的是要保持鸟喙和大脑忙，当鸟在笼子里或当鸟在笼子外都能和您在一起。

It is important to keep the bird's beak and brain busy, both when it is in the cage and when the bird is out with you.

youdao

重要的是要保持鸟喙和大脑忙，当鸟在笼子里或当鸟在笼子外都能和您在一起。

It is important to keep the bird's beak and brain busy, both when it is in the cage and when the bird is out with you.

youdao