" Featherless bipeds" was his official designation.

他认为人类是“没有羽足动物”。

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不见且没，它们需要被父母喂养，保持体。

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

他腰部瘦骨嶙峋，就像没有羽翅膀，他眼睛深陷在脑袋里。

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

它们有子、大眼睛， 有时还有喙而不是牙齿，这让它们看起来不太像蜥蜴， 而更像是… … 没有羽鸟。

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 “足动物”“无羽”“有理性” 等。