单词	snap head
释义	snap head buttonhead buttonhead The head of a bar, bolt, rivet, or screw which is hemispherical in shape; usually the head is less than a full hemisphere and has a flat bearing surface.
随便看	large technical system large telescope working group large test structure large test vessel large thrust slice zone large tidal volume ventilation large tooth aspen large-toothed aspen large tortoiseshell large tracon large trader large traders large truck crash causation survey large tug large tumor-bearing mice large-tumor-resected mice large turbo laser array large type large type of p-dlg large uncountable cells large underground xenon detector large underwater demolition team large unilamellar vesicle madelines madelin, louis

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