I am certain that it would-almost certain.

我确定事该如此——几乎是毫无疑问的。

youdao

I am certain that he died in a plane crash.

我肯定他在一次空难中身亡了。

youdao

"I am certain that they have," he reassured her.

我肯定他们都搞清了，“他安慰她。”

youdao

President Kennedy once said: "I am certain that after the dust of centuries has passed over our cities, we,too,will be remembered not for our victories or defeats in battle or politics, but for our contribution to the human spirit."

VOA: special.2010.10.29

And I get down to a certain card and I am stumped, so I will leave a space waiting for that card to appear on cue.

我遇到某张牌,会被困住，我会留些地方给,恰好要出现的牌。

麻省理工公开课 - 固态化学导论课程节选

I am certain we would know that George Washington was the commander of our forces in our battle.

我十分确信你们都知道,乔治·华盛顿是战时美国军队的指挥官

耶鲁公开课 - 古希腊历史简介课程节选

But I am certain that uncertainty about the sequester is not going to improve anything.

FORBES: Will the Sequester Cause Oncologists to Lose Money Prescribing Chemotherapy?

Ambassador CROCKER: I am certain that abandoning or drastically curtailing our efforts will bring failure.

NPR: Petraeus, Crocker Brief Congress on 'Surge'

But I am certain that this national security team probably isn't going to come up with it.

NPR: The Military Perspective