During that class, I bring several hats, and my Marty wig, 10 to class and use them to distinguish the person talking.

在课程期间，我将若干顶帽子和Marty的假发带进课堂，10通过这些道具区分不同的人物。

youdao

One 2013 study of college students found that 80% of students use their phones or laptops during class, with the average student checking their digital device 11 times in a typical class.

2013年的一项关于大学生的研究发现，有80%的学生在课上使用手机或笔记本电脑，在一堂平常的课上，平均每个学生查看数码设备的次数高达11次。

youdao

Historians suggest that the advent of mass tourism began in England during the industrial revolution with the rise of the middle class and the availability of relatively inexpensive transportation.

历史学家认为，大众旅游的出现始于工业革命时期的英国，当时中产阶级崛起，交通费用也变得相对便宜。

youdao

But in fact, it varies a lot from culture to culture, and we'll talk about that during the class.

但实际上,它在不同文化里的表现不尽相同,我们会在这门课里讨论

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

If you decide to opt in by a pass fail, I just need to sign your white study card or if you wanna decide before the 5th Monday, just grab the pink slip and I can sign that and you can turn that in at any point and I'm happy to chat during break today or after class if you have any questions or concerns.

如果你上我们的课程只是要一个分数，那么我只需要在你的白卡片上签个名就可以了,或者说，如果在第五周的周一前还没考虑好，把你的解聘书拿来，只要我签个字,任何时候你都开以离开我的教室,当然，如果你有任何问题和疑虑,我也很高心和大家做课下交流。

哈佛公开课 - 计算机科学课程节选

And you'll have a chance either to just stare at me or anyone else, or think about what we've just discussed, or have a guiding question that I will provide you that you'll address during the class.

你们可以盯着我或者周围人发呆，或者思考一下之前讨论的内容，或者解答我提出的提示问题。

哈佛公开课 - 幸福课课程节选

And we know a lot of what happened in terms of the explosion of deficit spending, and it was two massive, unpaid for tax cuts that largely benefited wealthiest Americans -- not the middle class that during that time period saw its incomes stagnate or shrink.

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During that time, a member of the capitalist class, Andrew Carnegie, argued the opposite: that, in fact, a sound currency was the friend of the common man, while a floating currency often gave speculators and financial sophisticates an unfair advantage.

FORBES: Ask Greek Citizens About Soft (Drachma) Money, And If They Like It

Because it was important during the recession to make sure that middle-class families were able to land on their feet.

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