They become sticky and harden into the shape of the letter C, like a sickle, a hand tool with a curved blade.

VOA: special.2009.12.16

And this is a tool with which you can navigate all the things that we know about going on campus.

这是你能够掌控,校园中发生的所有事情的一个工具。

哈佛公开课 - 计算机科学课程节选

I think with all the media we have available today is definitely good to kind of use that as a tool if you can.

我觉得，如果你会用的话，我们现今可用的媒体绝对是个不错的工具。

英语学习技巧 - SpeakingMax英语口语达人

Several people are credited with being the first to use microfinance as a tool for social improvement.

VOA: special.2010.06.16

Well a number of you have spent this past week playing with this particular tool which is a project the course has been working on for some time in an effort to make it easier and more social to actually shop for courses.

在过去的一周里,已经有一部分人开始使用这种特殊的工具了,这门课程一直在致力于这一工具的开发,目的是为了让课程变的更简单,选课更人性化。

哈佛公开课 - 计算机科学课程节选

Here is the first part of the poem: Hog Butcher for the World, Tool Maker, Stacker of Wheat, Player with Railroads and the Nation's Freight Handler;

VOA: special.2011.07.17

That's what we wanna achieve with Kindle, to have a device, so simple, it's a tool that would disappear and let you enter the author's world.

这就是我们想要通过Kindle达到的目标，设计一种简单的装置，自己消失的同时,能够让读者进入作者的世界。

普林斯顿公开课 - 领导能力简介课程节选

"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

written by Carl Sandburg. Here is the first part of the poem: Hog Butcher for the World, Tool Maker,Stacker of Wheat, Player with Railroads and the Nation's Freight Handler;

VOA: special.2010.01.10

"I think that Egypt, since it represents a moderate trend in the region, adopts dialogue as a method, as a tool to deal with the world,".

VOA: standard.2009.10.08