单词	D layer
释义	D layer noun : a layer within the D region of the ionosphere also : d region Word History First Known Use circa 1934, in the meaning defined above
随便看	hygeists hygge hygieists hygiene hygienes hygienic hygienically hygieniccer hygieniccest hygienicer hygienicest hygienics hygienise hygienises hygienist hygienists hygienized hygienizeed hygienizeing hygienizes hygienizing hygr- hygristors hygro- hygrocybes

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