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The birds have zygodactyl feet.
这些是有对趾脚的鸟.
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Adjective1. (of bird feet) having the first and fourth toes directed backward the second and third forward
The birds have zygodactyl feet.
这些是有对趾脚的鸟.
互联网
1. (of bird feet) having the first and fourth toes directed backward the second and third forward