专业释义英英释义
monotreme [ 'mɔnəutri:m ]
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n.
the most primitive mammals comprising the only extant members of the subclass Prototheria
同义词： egg-laying mammal
以上来源于: WordNet
柯林斯英汉双解大词典
monotreme /ˈmɒnəʊˌtriːm/
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1.
N any mammal of the primitive order Monotremata, of Australia and New Guinea: egg-laying toothless animals with a single opening (cloaca) for the passage of eggs or sperm, faeces, and urine. The group contains only the echidnas and the platypus (澳大利亚和新几内亚)单孔目哺乳动物
双语例句原声例句
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The Australian short-beaked echidna, a monotreme, is one of the oldest living 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。
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The genetic sequence of this Aussie monotreme (a type of mammal) is detailed in the May 8 issue of the journal Nature.
这只澳洲单孔目动物（哺乳动物的一种）的基因序列公布在5月8日出版的《自然》杂志上。
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