I mistook you for Carlos
我把你错当成卡洛斯了。
He mistook the time and did not attend the meeting.
他误时了，以致没有参加那个会议。
Unless I'm mistaken, she was back at work yesterday.
除非是我记错了，她是昨天回来上班的。
I told her my secret in the mistaken belief that I could trust her.
我误以为可以相信她，就把我的秘密告诉了她。
I mistook the one for the other.
我把他们俩搞错了。