driving magnet

例句：

1. 1. The car's engine is a powerful driving magnet.
   这辆车的引擎是一个强大的驱动磁铁。
2. 2.The magnet attracts metal objects due to its strong magnetic field.
   由于其强烈的磁场，磁铁能吸引金属物体。
3. 3. The magnet is used in many applications such as data storage and communication systems.
   磁铁在许多应用中都有使用，如数据存储和通信系统。