弄错了

I was wrong about him being on the yacht that evening.

他那晚没在游艇，我弄错了。

Be careful that you don't set the fireworks off by mistake.

当心点, 别弄错了引起那些爆竹爆。

After a few false starts, I finally managed to work the fax machine.

时弄错了几次，后来我终能够用那部传真机了。