单词	bell crank
释义	bell crank noun : a lever having its fulcrum at the apex of the angle formed by its two arms Word History Etymology so called from the bell wires used to transfer motion
随便看	midmonths midmorn midmorning midmornings midmost midmoster midmostest midmosts Midn midnight midnight appointment midnight blue midnight line midnight oil midnight sun midnighter midnightest midnightly midnights midnoon midnoons midpalatal midparent midparentage midparental

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