弄错了

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

他那晚没在游艇，错了。

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

当心点, 别错了引起那些爆竹爆炸。

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

开始时错了几次，后来终能够用那传真机了。