同根派生 aquatic mammal相關(guān)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(dāng)?shù)年憲溉閯?dòng)物明顯小了許多。aquatic mammal更多例句