(SAYING) "Also colorectal cancer screening another very important tool that can detect changes in the colon prior to the incurrence of the cancer."

VOA: standard.2010.03.25

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

Simply by clicking that link you can then log into your account; and then on the left hand side what appears is a little menu of all of your friends who are also using this tool and you can select any one of them and actually see what that person is shopping.

只需轻点鼠标便可进入自己的账户;,页面的左边有一个菜单栏,其中是你所有也在使用这个工具的朋友,你可以选中其中一个,查看ta所选择的课程。

哈佛公开课 - 计算机科学课程节选