So tens or hundreds of millions of dollars would go into a study like this by the time it was completed, money that could have been used for other things, to test whether eating a low fat diet would reduce risk for breast cancer.

数以百万计的美元,投入到这样的研究,当研究结束时,本可以用来做其他事情的钱,被用来检测是否低脂膳食,可降低患乳腺癌风险

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

We were using a test-chat room, test space chat room, where they were able to communicate with Professor Low, to ask questions and to exchange views and to have this feedback on their projects.

我们利用聊天室，进行测试，在那里,学生能和Low教授沟通，问问题，交流观点,并获得有关项目的反馈。

麻省理工公开课 - 媒体、教育、市场课程节选