"That should not be happening in this country, and this bill doesn't stop that, that is my concern.

VOA: standard.2010.03.18

My central concern for India is that a large majority of Indians may not be benefit in front of this growth.

我最关心的问题是,面对经济的飞快发展,大多数印度人可能无法获益。

普林斯顿公开课 - 国际座谈会课程节选

So, the concern at this time, and still remains a concern, is that infectious agents, particularly very deadly infectious agents like smallpox, could be weaponized in some way, or converted into a weapon.

当时有一些担心,现在还在担心,这些传染源,尤其是像天花非常具有致命性的传染源,可以进行某种程度的武器化,或者转变成武器

耶鲁公开课 - 生物医学工程探索课程节选

They will be decreasing in size and frequency, but at this point they're still large enough to be of concern in hampering the rescue efforts."

VOA: standard.2010.01.13

We did not yet have good methods for screening blood to look for HIV, we didn't have the ELISA technique that I--we talked about in section a few weeks ago and so there was a great concern that there might be other diseases that you'd be passing on from-- unknowingly from this subset of patients that you're isolating the vaccine from.

那时我们还没有一种好的方式,来从血液中筛查出HIV,也还没有ELISA技术,该技术我们在几周前的一个章节中谈到过,因此,那时仍存有,很大的担心,那就是你有可能,在不知情的情况下,被那些病人,感染上其它疾病,因为疫苗就是从他们身上提取出来的

耶鲁公开课 - 生物医学工程探索课程节选

Later,he told reporters that the debate in Western countries regarding engagement in Afghanistan should be reason for concern for both the current and future Afghan governments.

VOA: standard.2009.09.29

On a related issue, spokesman Rupert Colville says the situation of one-quarter of a million displaced Tamils living in internment camps continues to be of great concern.

VOA: standard.2009.10.25