shoulder spring

例句：

1. 1. The shoulderspring is responsible for the smooth movement ofthe arm.
   肩部弹簧负责手臂的平滑移动。
2. 2. The shoulder spring is a crucial componentin the design of a car'ssuspension system.
   肩部弹簧是汽车悬挂系统设计中至关重要的一个部件。
3. 3. The shoulder springneeds to be adjusted regularly to ensure properfunctioning.
   肩部弹簧需要定期调整，以确保正常工作。