单词	desert varnish
释义	desert varnish noun : a dark coating which is found on rocks after long exposure in desert regions and whose color is due to iron and manganese oxides Example Sentences Recent Examples on the Web Will the Arches social media team continue to be able to post about bighorn sheep, desert varnish and other fascinating features of the park? Julie Jag, The Salt Lake Tribune, 15 Aug. 2022 But there are advancements being made that may allow scientists to determine dates by analyzing the desert varnish on rocks. San Diego Union-Tribune, 9 Jan. 2022 Word History First Known Use circa 1898, in the meaning defined above
随便看	penny-wise but pound-foolish pennycress pennycresses pennyflower pennyland pennyprick pennyroyal pennyroyals pennysiller pennystone pennystones pennyweight pennyweighter pennyweights pennywhistle pennywhistles pennywinkle pennywinkles pennywort pennyworth pennyworths pennyworts Penobscot penobscot penobscots

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