Just as he had suspected, the mechanic had put in the wrong fuel.

果然不出所料，机械师放错了燃料。

But if you put in the wrong number, something terrible and deadly will happen.

但如果你输入错误的数字，就会发生可怕而致命的事情。

And if you put in the wrong address, then it will reject your credit card.

如果你输入错误的地址，它会拒绝你的信用卡。