1. A series of levers joined to a pointer shows pressure on a dial. 一系列控制杆连着一枚指针，在刻度盘上显示出压力数。
2. During tests over several days, the pointer or tracker tracked an IR source and directed a laser beam at that source. 在几天的测试中，指示器或跟踪器跟踪一个红外光源，并引导激光束击中目标。
3. She tapped on the world map with her pointer. 她用教鞭轻点在那张世界地图上。
4. The surge in car sales was regarded as an encouraging pointer to an improvement in the economy. 汽车销售量的激增被视为经济回升的指标。
5. It's a pointer to this chunk of memory. 它是指向这块内存的指针。
