Belief is the ignition switch that gets you off the launching pad.
信念就是让你从发射台起飞的点火开关。
For example, fuel is available at the carburetor as soon as the operator turns the ignition switch on.
例如，当点火开关接通的同时，燃油就能送至化油器。
It can also be a mechanical interlock device that will not let the ignition switch turn to start if the car is in the gear.
同样，安全开关也可以是机械互锁装置，当汽车挂挡后不允许点火开关转到启动位置。
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