单词	Paris green
释义	Paris green noun Par·​is green ˈper-əs-  ˈpa-rəs- 1 : a very poisonous green copper and arsenic compound C4H6As6Cu4O16 used especially formerly as an insecticide and pigment 2 : a brilliant yellowish green Word History Etymology Paris, France First Known Use 1845, in the meaning defined at sense 1 Medical Definition Paris green noun Par·​is green ˌpar-əs-  : a very poisonous copper-based bright green powder Cu(C2H3O2)2·3Cu(AsO2)2 that is used as an insecticide and pigment
随便看	on/upon reflection Ona onager onagers onagra Onagraceae onagraceaes onagraceous onanism onanisms onanistic onanists onas onboard onboarded onboarder onboardest onboarding onc- once once again once again/more once and again once and for all once bitten, twice shy

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