His behaviour soon undeceived her as to his true intentions.
他的行为很快就使她明白了他的真实意图.
辞典例句
Indeed, they sometimes dive below as it were by mistake, and are undeceived.
是的, 有时它们氽水到水平线之下,好像这是偶然的错误, 继而恍然大悟.
互联网
"some people are still not disabused of the old idea that the universe revolves around the Earth"