1." Featherless bipeds" was his official designation.

认为人类是“没有羽毛两足动物”。

2.Some baby birds hatch blind and featherless, and need to be fed and kept warm by their parents.

一些小鸟破壳后是看且没毛，它们需要被父母喂养，保持体。

3.His haunches were bony, like featherless wings, and his eyes were sunk into his head.

腰部瘦骨嶙峋，就像没有羽毛翅，眼睛深陷在脑袋里。机翻

4.They had pointed snouts, big eyes, and sometimes beaks instead of teeth, making them look less like lizards and more like … featherless birds.

它们有尖尖鼻子、大眼睛， 有时还有喙而是牙齿，这让它们看起来太像蜥蜴， 而更像是… … 没有羽毛鸟。机翻

5.For example, the denotation of human is any person such as John and Mary, and its connotation is " biped." " featherless, " " rational, " etc.

例如，人外延是任何人，如约翰和玛丽；内涵是 “两足动物”“无羽毛”“有理性” 等。