"Public education is our greatest tool - arming people with knowledge about the ways in which common criminal enterprises have tried to take advantage of them."

VOA: special.2011.06.24

And I think the fact that our foreign investments are generally denominated in currencies other than the dollar is also attractive -a good diversifying tool for the university.

我认为,我们的资产中,有用非美元计价的国外投资,这点也是相当有吸引力的,对学校来说是个很好的多元化延伸

耶鲁公开课 - 金融市场课程节选

So, they developed this bifurcated tool, which would be appl--you'd put the stuff on the surface of the tool and then you'd scratch the skin in a certain way so that you could produce sort of a reproducible introduction of the vaccine into the skin.

所以他们发明了一种分为两叉的工具,把疫苗抹在这种工具表面上,然后以某种方式在皮肤上刮,这样就能将疫苗,重复不断地引入到皮下

耶鲁公开课 - 生物医学工程探索课程节选

Collecting food and medical supplies is a common tool for many Cuban-Americans to offer person-to-person assistance to people on the island.

VOA: standard.2009.10.23

Someone-- or someone had to implement, had to write a tool called printf that itself takes input between quotes and produces as output some characters on the screen.

需要有人去实现，这个printf函数,以双引号间的信息为输入,输出相应字母到屏幕上。

哈佛公开课 - 计算机科学课程节选

"Make no mistake," "We will close Guantanamo prison which has damaged our national security interests and become a tremendous recruiting tool for al-Qaida."

VOA: standard.2010.01.05

That is our mission,". "And the president described it in no uncertain terms in his inaugural when he said, 'Our nation is at war against a far-reaching network of violence and hatred.' And to win this war against al-Qaida, the administration continues to be unrelenting, using every tool in its toolbox and every arrow in its quiver,"

VOA: standard.2009.08.06