My own experience made me feel certain of becoming a mentor this year and helping other students like myself.

我确信凭着自己的经历，今年会成为一名导师，帮助像我一样的学生。

youdao

Advertisements are made to make people feel certain that they are true, and then people can buy the products.

广告是为了让人们确信它们是真实的，然后人们就可以购买产品。

youdao

I feel certain that it will all turn out well.

我觉得最后肯定一切都会很好

《柯林斯英汉双解大词典》

I feel certain sensations in my body, but it doesn't seem as though I observe a soul.

我能感应到肉体里某些特定的感觉,但我并不认为那样我就能观察到灵魂

耶鲁公开课 - 死亡课程节选

It just explains that you feel a certain way and it might be contradictory to what is expected of you

它可以表达你产生了一种可能与他人对你的预期相反的感觉。

I can't help but 课堂 - SpeakingMax英语口语达人

And so probably does each animal feel about the particular things it tends to do in the presence of certain objects.

所以，可能每种动物,倾向于做特定的事情,在某物面前。

耶鲁公开课 - 心理学导论课程节选

Sometimes we feel certain about when it's taking us, sometimes we feel less certain.

FORBES: The Recovery Will Take Another Year

English football needs people of his stature and we feel certain that this experience will serve him well.

BBC: Middlesbrough sack boss Southgate

And although employees and shareholders are only speculating, almost all feel certain that the name in the letter is Henri de Castries.

ECONOMIST: The difficulty of being a dauphin