quadruped造句

An elephant is a quadruped.
大象是四足动物.

Ventral ( or pelvic ) fins correspond to the hind limbs of a quadruped.
腹鳍 对应着四足动物的后肢.

The corresponding part of the forefoot of a quadruped.
'掌骨'.''四足动物前脚所对应的部分.

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