monotreme
美式发音: ['mɒnətri:m] 英式发音: ['mɒnətri:m]n.单孔目动物（卵生哺乳动物）
网络释义：单孔类动物；原兽亚纲单孔目
复数：monotremes网络释义
monotremen.1.单孔目动物（卵生哺乳动物）a class of animal including the echidna and the platypus , which lays eggs, but also gives milk to its babies
n.1.【动】单孔目动物
n.1.a mammal such as the duck-billed platypus or echidna that lays eggs and has a single opening for the discharge of feces and urine.
1.单孔类动物 monotrematous 单孔类的 monotreme 单孔类动物 monotype 单型 ...
2.单孔目动物 ... monophosphoryl ppid A，MPL， 单磷酰脂质A monotreme 单孔目动物 morphine 吗 …
3.原兽亚纲单孔目物在一亿五千万年前至七千万年前演化的三个...1)原兽亚纲单孔目( Monotreme ) (2)后兽亚纲 有 袋目( Marsupial )...
例句释义:,单孔目动物,单孔类动物,原兽亚纲单孔目1.The Austrapan short-beaked echidna, a monotreme, is one of the oldest pving mammals on earth.澳大利亚短吻针鼹，一单孔类动物，是现存最古老的地球上的哺乳动物之一。