switching gate

例句：

1. 1. The engineer switched the light switch to turn on the lights.
   工程师把开关换了一下，让灯亮了。
2. 2.The train's switching gate was closed, preventing it from entering the station.
   火车的转换门关闭了，阻止它进入车站。
3. 3.The new system allows for seamless switching between different modes of transportation.
   新系统允许无缝切换不同的交通模式。