I won't let you down, I can assure you of that.

我不会让你失望的，我向你保证！

youdao

While the author thinks that the price of saving species is too high, I assure you that this noble cause is priceless.

虽然作者认为拯救物种的代价太高，但我向你保证，这项崇高的事业是无价的。

youdao

It would be irresponsible for me to downplay the magnitude of this crisis or assure you that everything is under control.

如果我缩小这次危机的严重性或向你们保证一切都在控制之中，就是不负责任的。

youdao

"In the classroom I can assure you that at least 30 percent are the children of former Khmer Rouge, another 70 percent are the children of the victims."

VOA: standard.2010.04.19

"We're not the only team whose attendance is down, I can assure you of that, " Steinbrenner said.

WSJ: Steinbrenner Likes What He Sees

"This could not happen today, I assure you of that, " said one of the officials, Barbara Butcher.

WSJ: NYC rape evidence gets stricter oversight

Mr. STEPHEN HESS (Senior Fellow Emeritus, Governance Studies, Brookings Institution): Yes, and beginnings are more fun than endings, let me assure you of that.

NPR: Clock Ticking On Obama's First 100 Days