基本解釋adj.升降同根派生 up-down相關詞英漢例句用作形容詞 (adj.)Window cleaners are pulled up and down tall buildings on cradles.窗戶清潔工乘坐能升降的吊籃清洗高層建筑物的窗子。The Looper Thread Take-up can make it up and down for threading easy.升降式底線分線盤,使穿線更容易。up-down更多例句