Today’s average car contains more than 15,000 separate, individual parts that must work together. These parts can be grouped into four major categories: body, engine, chassis and electrical equipment 。
现在的车辆一般都由 15000多个分散、独 立且相互配合的零部 件组成。这些零部件 主要分为四类：车身 、发动机、底盘和电 气设备。