单词	alumina porcelain
释义	alumina porcelain noun : a porcelain composed chiefly of alumina and used in spark plugs Word History First Known Use 1882, in the meaning defined above
随便看	sharp-set sharp-shinned hawk sharp-shot sharp-sighted sharp-sightedness sharp-tailed sharp-tailed duck sharp-tailed finch sharp-tailed grouse sharp-tailed sandpiper sharp-tailed sparrow sharp-tongued sharp-toothed sharp-witted Sharpe sharped sharpen sharpen up sharpened sharpened up sharpener sharpeners sharpening sharpening stone sharpening up

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