单词	acenaphthenyl
释义	acenaphthenyl noun ace·​naph·​the·​nyl -thəˌnil plural -s : a univalent radical C12H9 formed by removal of one hydrogen atom from acenaphthene Word History Etymology acenaphthene + -yl First Known Use circa 1929, in the meaning defined above
随便看	cut film cut flower cut from the same cloth cut gear cut glass cut ice cut in cut in (on) cut in on cut into cut island cut it cut it close cut it fine cut loose cut man cut money cut nail cut no ice cut of one's jib cut off cut off from cut off one's nose to spite one's face cut oil cut on

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