finger piece的用法和樣例：
例句
- The finger of the clock points to twelve.
鐘的指針指向十二點(diǎn)。 - Ignition button on the right index finger, double-light, two instruments on the red pointer swing quickly, they tease you with the sympathetic nervous.
點(diǎn)火按鈕就在右手食指下，輕按兩下，儀表上兩只紅色的指針迅速擺動(dòng)，它們在挑逗著(zhù)你的交感神經(jīng)。
