switch-and-lock mechanism

例句：

1. 1. The new car has a switch lock mechanism that makes it easy to start and stop the engine.
   这款新车有一个开关锁机制，使得启动和停止引擎变得简单。
2. 2.The security system in this house has a switch lock mechanism that requires a code to access.
   这所房子的安保系统有一个开关锁机制，需要密码才能进入。
3. 3.The new software update for the computer has a switch lock mechanism that prevents unauthorized access.
   电脑的新软件更新有一个开关锁机制，防止未经授权的访问。