单词	periodoscope
释义	periodoscope noun pe·​ri·​od·​o·​scope ˌpirēˈädəˌskōp : a table or dial for calculating the probable date of parturition Word History Etymology period entry 1 + -o- + -scope
随便看	Mexican chicken bug Mexican clover Mexican cypress Mexican devil-weed Mexican dollar chelydrae chelydras Chelydridae chelydridaes chelydroid Chelys Chelyuskin, Cape chem chemaka chemakuan Chemakuan chemakuans Chemakum chemakums chemawinite Chemehuevi chemehuevis chemi chemi- chemiatric

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