n.水栖哺乳动物 newaquatic mammal的英文翻译是什么意思，词典释义与在线翻译：英英释义Noun:whales and dolphins; manatees and dugongs; walruses; seals aquatic mammal的用法和样例：例句用作名词(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. 翼膜向后延伸包围住后肢，蝙蝠的后肢比其他体形相当的陆栖哺乳动物明显小了许多。
