a plaything consisting of a board balanced on a fulcrum; the board is ridden up and down by children at either end 支点でバランスをとる板でできた遊び道具。板が、片方の端の子供によって上下に動く乗り物。
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【上位】 participate in games or sport; "We played hockey all afternoon"; "play cards"; "Pele played for the Brazilian teams in many important matches" ゲームかスポーツに参加する。
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