同根派生

• aquatic mammal相關詞

英漢例句

用作名詞 (n.)

• The membranes extend backward to encompass hind limbs that are quite a bit smaller than those of a terrestrial mammal of comparable body size.
  翼膜向后延伸包圍住后肢，蝙蝠的后肢比其他體形相當?shù)年憲溉閯游锩黠@小了許多。

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