单词	arch-gravity dam
释义	arch-gravity dam noun : an arch dam having also sufficient mass and breadth of base to provide gravity stability Word History Etymology arch entry 1
随便看	boothale bootheel Boothia Peninsula Boothia, Gulf of boothite boothose boothoses booths bootie booties bootikins booting booting (out) booting (up) booting out booting up bootjack bootjacks bootlace bootlaces Bootle bootleg bootlegest bootlegged bootlegger

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