音標發(fā)音英式音標 [?tr?k.b??l]美式音標 [?tr?k.b??l]英式發(fā)音 美式發(fā)音 基本解釋n.〈計算機〉（用來控制光標的）追蹤球同根派生 trackball相關(guān)詞英漢例句A trackball is essentially an upside-down mouse. 軌跡球鼠標實際就是倒置的普通鼠標。Instead, it is controlled with a trackball. 相反,它由追蹤球控制。User can type on using a mouse or trackball. 用者可使用滑鼠或軌跡球作輸入。Carefully set your trackball assembly aside. 小心地把軌跡球架子放在臺上。A mouse takes much more room than a trackball. 鼠標要比軌跡球佔地方的多。trackball更多例句英英字典劍橋英英字典 a ball on the keyboard of a laptop or other computer that you roll with your finger in order to move the cursor on the screentrackball劍橋字典trackball柯林斯字典