基本解释adj.凹背的;馬鞍形的;有鞍部的同根派生 英汉例句用作形容詞 (adj.)Without any railing, both sides of the bridge caved downward in the shape of a long, thin saddle.那橋沒有欄杆,兩邊曏下塌,是瘦長的馬鞍形。