单词	air ring
释义	air ring noun : an inflatable rubber ring used as a cushion to relieve pressure on prominent bony points (as in helping to prevent bedsores) Word History First Known Use 1895, in the meaning defined above
随便看	Tripura tripwires Tripylaea tripylaean tripylaria tripylarian Tripylea tripylean Trique Triquean triques triquetra triquetrales triquetrals triquetras triquetric triquetrous triquinate triracial triradial triradially triradiate triradiated Triratna trirectangular

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