pointer

英文解釋：

名詞 pointer:

1. a mark to indicate a direction or relation
   同義詞：arrow
2. an indicator as on a dial
3. (computer science) indicator consisting of a movable spot of light (an icon) on a visual display; moving it allows the user to point to commands or screen positions
   同義詞：cursor
4. a strong slender smooth-haired dog of Spanish origin having a white coat with brown or black patches; scents out and points game
   同義詞：Spanish pointer

例句：

1. The pointer flickered.
   指示針來回擺動。
2. Be sure to this weather pointer correctly.
   千萬把天氣指針撥準了。
3. A graduated surface or face on which a measurement, such as speed, is indicated by a moving needle or pointer.
   標度盤有刻度的表面或面，在上面由活動的指針或指示器表示度量衡，比如溫度