Seesaws
n. 跷跷板, 上下动( seesaw的名词复数 )\\nv. 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
🗣️ 情景例句
Keep trying! don't give up the ship.
继续努力！ 别轻易放弃！
He who follows two hares is sure to catch neither.
追逐两只兔，两头都落空。
They hurt.
（伤口）疼。