seesaws是什么意思 seesaws在线中文翻译

n. 跷跷板，上下动( seesaw的名词复数 )

v. 使上下（来回）摇动( seesaw的第三人称单数 ); 玩跷跷板，上下（来回）摇动

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

v ride on a plank

v move up and down as if on a seesaw

v move unsteadily, with a rocking motion