So you can imagine a bead with a wire going through it and the bead can only slide back and forth.

你可以想象一个穿在绳子上的珠子,小珠只能前后滑动

耶鲁公开课 - 基础物理课程节选

We were going to have a clicker slide on how many bounced back but it looks like we're having a little technical difficulty with that.

发生背散射，球被弹回来了的,同学请你们站起来,让我算算。

麻省理工公开课 - 化学原理课程节选

If people wanna kind of slide back, that's fine, as I'm talking Okay, we're ready.

各位要是现在想换到后排,就放心换,没关系的,我不介意,好,我们可以开始了

耶鲁公开课 - 心理学导论课程节选

Brown if we can go back to the previous slide.

布朗,让我们回到上一张幻灯片

耶鲁公开课 - 聆听音乐课程节选

Under-nutrition--now I'm going -this slide has a lot of information on it and I'm going to come back to it in the class where we talk about hunger, but I show it today because of course undernutrition can affect every single system of the body and can have devastating consequences on people's health.

营养不良,这张幻灯片上有很多关于营养不良的信息,以后讲到饥饿的时候,我会再回头来讲这张幻灯片,我今天让大家看是想告诉大家,营养不良一定会影响身体的每一个系统,并对人们的健康造成巨大的破坏

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选