单词	groundmass
释义	groundmass noun ground·​mass ˈgrau̇n(d)-ˌmas  : the fine-grained or glassy base of a porphyry in which the larger distinct crystals are embedded Word History First Known Use 1879, in the meaning defined above
随便看	pulicose pulicous pulik puling pulings pulis Pulitzer Pulitzer Prize pulitzers pulk pulka pulkas pulkhas Pulkovo pulks pull pull a face pull a fast one pull a punch pull a stunt pull a vanishing act pull ahead pull an all-nighter pull apart pull aside

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