top selector lever

例句：

1. 1. The top selector lever on the computer keyboard allows you to quickly access the most frequently used keys.
   电脑键盘上的顶部选择器杠杆允许您快速访问最常用的键。
2. 2. The engineer used a top selector lever to adjust the tension of the spring.
   工程师使用顶部选择器杠杆调整弹簧的张力。
3. 3. During the assembly process, the top selector lever was used to ensure proper alignment of the components.
   在装配过程中，顶部选择器杠杆被用来确保组件的正确对齐。