单词	acetate butyrate
释义	acetate butyrate noun : a mixed acetate and butyrate specifically : cellulose acetate butyrate Word History First Known Use 1878, in the meaning defined above
随便看	a rap on/over/across the knuckles a rap over the knuckles a raw deal a red rag to a bull a remote chance a roll in the hay a roll of the dice a roof over one's head a rovescio a safe bet a shade a shadow of (a) doubt a shadow of a doubt a shadow of doubt a share of the pie a sharp tongue a shiver runs down someone's spine a shiver runs up someone's spine a shock to someone's system a shock to the system a shock to the/someone's system a shot a shot across someone's bow a shot across someone's bows a shot across the bow

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