How many of you-- I was walking with a student over to my office after lecture the other day to get some material to him.

你们中有哪几位,前些天我和一个学生在课后,一起去我的办公室取材料

耶鲁公开课 - 聆听音乐课程节选

How many hours do you work a day?

你一天工作几个小时？

电脑图片的魅力 - SpeakingMax英语口语达人

One problem that people have is understanding what a portion is, because you say we should have this many servings of fruits and vegetables a day, we should have this many servings of that a day.

人类很难理解每餐食物摄入量这概念,因为假设,我们一天应该摄入一定份量的水果和蔬菜,各种食物每天都有一定摄入量

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'll talk about how your normal valves function inside your heart and how your heart couldn't work in the way that it did if it didn't have valves that were doing a very complex operation many many times a day.

我们会讨论,正常的瓣膜在心脏中如何工作,以及没有这个,每天不停完成很多复杂任务的心脏瓣膜,心脏为什么,就不能正常工作了

耶鲁公开课 - 生物医学工程探索课程节选

What we'll--later in the course we'll talk about how much of your body has been influenced by corn; how much of your diet is influenced by corn; how many products you touch in a given day have been derived in some way from corn.

我们会在以后的课堂上讲到,玉米对你身体有多少影响,玉米对你的日常饮食又有多少影响,一天之内你接触到的产品,有多少是由玉米加工而来的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选