滴點 初餾點droppings: 滴下物; 動物糞便; 廢棉,落棉droppingblock: 降下式droppit: 跌水坑dropping-speed motor: 具有下降速度特性的電動機droppoint: 水滴型下載手機詞典可隨時隨地查詞查翻譯