细弹簧

例句：

1. 1. The door is spring-loaded to open easily.
   这扇门是弹簧加载的，可以很容易地打开。
2. 2.The old house has a lot of woodensprings that need replacing.
   这所旧房子有很多需要更换的木制弹簧。
3. 3.Spring cleaning is a tradition in many households.
   在许多家庭中，大扫除是一种传统。