n. 
石,角石,英石岩
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electroretinogram, electroretinograph, electroretinography, electroscope, electroscopy, electrosection, electrosemaphore, electrosensitive, electrosensitivity, electrosensory,
相似单词
phthalylsulfacetamide, phthalylsulfadiazine, phthalylsulfamerazine, phthalylsulfathiazole, phthalylsulphathiazole, phthanite, Phtheirospermum, phthienoate, phthinode, phthiobuzonum,