The report says the common housecat is the number-one killer of fledgling gray catbirds near America's capital.

VOA: special.2011.05.24

So will we be using the internet for video on-demand, will that be the killer app? Will millions of people wide watch this video right when they want to watch it?

所以我们会使用互联网实现随需视频么，那会成为杀手级应用么？会有数百万人,就在他们想看的时候看到视频么？

麻省理工公开课 - 媒体、教育、市场课程节选

And the real killer is if we get too close we're even going to have nuclear-nuclear repulsion between the nuclei of the two atoms.

而更致命的是，如果我们靠得太近,我们甚至会有,两个原子核之间的排斥力。

麻省理工公开课 - 化学原理课程节选

The killer murdered someone, not in self-defense, or because he was reacting to anger or fear.

VOA: special.2009.12.13

I'd like to ask you what the biggest killer was in 1900. What-- which of these things took the most lives in the United States?

你们认为1900年时的头号杀手是什么,哪一项在美国的致死人数最多

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

For example,a newspaper says the police are searching for a cold-blooded killer.

VOA: special.2009.12.13

So, the classes of T-cells: macrophages, natural killer cells, these are a class of cells that's particularly important called dendritic cells.

这类T淋巴细胞包括巨噬细胞,自然杀伤细胞等 统称为树突细胞,树突细胞尤为重要

耶鲁公开课 - 生物医学工程探索课程节选

His book is called "Manhunt: The 12-Day Chase for Lincoln's Killer."

VOA: special.2009.10.12

There are two major traits among these GE crops: resistance to certain insect pests, and resistance to a weed-killer called glyphosate.

VOA: standard.2010.04.15