He believes him to be a weak and unintelligent man.

他相信自己是一个软弱的傻子。

《柯林斯英汉双解大词典》

He is an unscrupulous rogue. No one believes him.

他是一个刁滑之徒，没有人相信他。

《新英汉大辞典》

He imagines that no one believes him.

他总是认为没有人信任他。

youdao

She says she believes Muse was tricked into becoming a pirate by men who falsely promised him money.

VOA: standard.2009.04.22

The charges against him were: corrupting the young and disbelieving in the Gods that the city believes in.

罪名是：,腐化青少年与,亵渎神明，雅典城所信奉的神明。

耶鲁公开课 - 政治哲学导论课程节选

He tells VOA he believes the Israelis have punished his son and used him as an example to deter others from harming Israelis.

VOA: standard.2009.04.09

Abu Kareem believes him.

NPR: Sadr City Revolves Around Old Ties, Cleric

Nobody believes in him, and thus nobody can see him despite his attempts to bring children fun and joy.

FORBES: 'Rise Of The Guardians' Review: The Only Thing To Fear Is Fear Itself

"A player like Joe needs to feel his manager believes in him and that has perhaps not been the case at Chelsea and England, " says Keith Blunt, who saw first hand just how talented the young Cole was.

BBC: Can Joe Cole fulfil early promise and revive Liverpool?