teetertotter [ 'ti:tə,tɔtə ]

• n. a plaything consisting of a board balanced on a fulcrum; the board is ridden up and down by children at either end

  同义词： seesaw teeter teeter-totter teeterboard tilting board dandle board

• v. ride on a plank

  同义词： teeter-totter seesaw

以上来源于: WordNet