The more calories you burn, the easier it is to control or reduce your weight.

VOA: special.2010.06.08

So you can log into this, not only chat with this interactively, but on the right-hand side here, which is just a wallpaper right now, you can actually grant us view or control of your own screen.

所以你可以登录进去，不仅仅是,相互间的聊天，在这里的右手边，这只是一张壁纸，你可以允许我们查看或者控制你的屏幕。

哈佛公开课 - 计算机科学课程节选

So, you didn't know at the beginning, you knew you were enrolled in the trial, they gave you a shot, you didn't know whether you were part of the real group that got the test vaccine or the placebo group that got the control; turned out that Bonnie was part of the control group.

一开始你可能不清楚全过程,你只知道你参与了一项试验,他们给你打了一针,你不知道你是属于接种了,试验疫苗的真实试验组,还是属于被注射了安慰剂的空白对照组,结果显示,邦妮属于对照组

耶鲁公开课 - 生物医学工程探索课程节选