But I can assure you that no instructions have been issued by Mr.Zardari or the government to block any private television channels,".

VOA: standard.2009.03.14

And I said to my advisor, "No, no. I have taken chemistry in high school, and I can assure you that chemistry has no relevance whatsoever to the life sciences."

于是我就去和我导师说：,“我在高中学过化学，我向你保证化学和生命科学,没有任何关联“

麻省理工公开课 - 化学原理课程节选

Well I grew up in Michigan and I can assure you that Michiganders love all those things too and probably even more.

我在密西根州长大,所以我敢保证密西根人也很喜欢这些东西,甚至比南方人更喜欢

耶鲁公开课 - 美国内战与重建课程节选

We're going to really get into this next class, but I just want to introduce it to you to give us a start, and many of you have used Lewis structures in high school, but we'll be doing some much more challenging Lewis structures, I can assure you, in this class here.

其实我们下节课才会详细介绍它，但是今天我只想以简单介绍作为开始，大部分同学在高中就用过路易斯结构了，但是我们会遇到一些更具挑战性的,路易斯结构，我可以向大家保证，在这门课中会的。

麻省理工公开课 - 化学原理课程节选