dupe

骗子把那位老人当作容易上当的傻瓜。

The scammer treated the old man as an easy ___dupe.

他试图欺骗我相信这个假消息。

He tried to ___dupe me into believing the fake news.

尽管是一位经验丰富的投资者，他还是被那位魅力十足创始人的保本保息承诺欺骗了。

Despite being a seasoned investor, he was ___duped by the charismatic founder's promises of guaranteed returns.