scratchback
/'skrætʃ,bæk/
n. 
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benzofuran, benzofuranyl, benzoglioxaline, benzoglycolisacid, benzoglycols, benzoguanamine, benzoic, benzoic acid, benzoidhydrin, benzoin,
相似单词
scratch pad, scratch paper, scratch test, scratch up, scratchability, scratchback, scratchboard, scratchbrush, scratchbuild, scratchcat,