1、His unusual behaviour soon undeceived me of my stupid belief that he was an electrician.
他行為異常使我很快意識到，他是個電工的看法是愚蠢的。

2、Oh, nothing, ' he suddenly undeceived and returned to the reality.
啊，沒什么。'他幡然醒悟，重返現實。

3、Your behaviour soon undeceived me as to your true intentions.
你的行為很快讓我明白了你的真實意圖。