Eg: He was sincerely convinced of his own merit.

例句：他真心诚意地相信自己的优点。

youdao

Since then he has been sincerely convinced, and even crazily assured that "I was meant to be a lady"; such distorted gender gave birth to a tragedy.

从此他便心悦诚服，甚至狂迷的认定了“我本是女娇娥”，这种性别的扭曲孕育了悲剧。

youdao

We sincerely invite you to take some time aside to our party. And we are convinced that your honored participation will lead to a more complete success.

我们诚挚地邀请您拨冗出席此次盛会，我们深信：您的参与，将给本次活动带来更圆满的成功！

youdao

Even if one accepts these arguments and these factors may indeed play a role in exacerbating the sense of violent alienation among many young Muslims it remains hard to understand why a convinced political Islamist would sincerely want to become an American citizen.

WSJ: Why the U.S. Needs a New Loyalty Oath

More important, he appears now to be convinced that Sinn Fein is sincerely committed to peaceful politics.

ECONOMIST: Trimble��s gamble