You are at ease, I certainly don 't fails to ive! Study properly and pase the ideal school!

您放心，我一定不辜负您的期望！好好学习，并且考上理想的学校！

youdao

But now I "m up the creek; I certainly don" t have the tuition money and I hate to ask dad to pay it.

但是现在我可进退两难了：我自己当然没钱交学费，而我实在不愿意向爸爸开口要。

youdao

I certainly don 't want him back, but I don' t see why someone else should go through what I went through, getting the shock of her life some day when he announces, 'I' m leaving.

我当然不想他回来，但我不明白为什么别人还要去经历我所曾经历的事情，当有那么一天他宣布“我要走了”的时候，给她的生活带来打击。

youdao

But we certainly didn't have goals. I don't know if we had ever heard of Grammys at that point.

VOA: special.2010.04.19

I don't know if that's true of you, but it certainly is true of people of my generation.

我不知道你们是不是也这样,但对于我们这代人来说确实如此

耶鲁公开课 - 古希腊历史简介课程节选

I don't know if it's the biggest, but it's certainly one of the best collections of stuff

我不知道那是否是最大的，但是绝对是最好的收藏之一。

世界的宝物都聚于此 - SpeakingMax英语口语达人

Well, I'll tell you now, I don't feel lonely and I certainly don't feel as if I'm dying, but even so I'm glad she's coming home.

NPR: Excerpt: 'The Sister'

"I don't need 900 minutes, and I certainly don't need an unlimited plan, " said the University of Michigan admissions counselor, who makes use of Internet phone applications like Google Voice.

WSJ: Wireless Carriers' Next Move: One Choice for Voice

Well, if you don't know, I certainly don't know.

WSJ: Keep Your Kids Safe With AT&T