The respiratory system plays an important role in maintaining our internal environment at the proper level of oxygen, by bringing the right amount in.
呼吸系统的重要性在于,通过向体内输入适量的氧气,维持人体内环境中的氧平衡
Well, I would say it's a very different type of environment in the day and at night.
在白天和晚上,这里的环境会有很大不同。
There's no change in them, and then we also looked at some at non-state functions, work and heat, and saw that those aren't zero going around a cycle. Of course you can do work in a cyclic process, and heat can be exchanged with the environment at the same time.
它们不会有变化,然后我们研究了,一些非态函数,功和热量,并看到,沿着循环行进一周的话,它们并不是零,当然你可以在,一个循环过程中做功,而同时热量可以在系统,与外界环境之间进行交换。
itself and introduce Scratch, the programming language in an environment we looked at, but also some of the fundamentals that we'll lace throughout the course.
这周五我们就开始讲计算机科学,并在我们设定的环境下,介绍编程语言Scratch的用法,而且我们也会在课程中,捎带讲一些基础知识。
In a normal, productive, healthy, happy environment, people don't scream at you about how bad you're doing but they compliment how good you are and that could lead to an inflated self-esteem on the part of people in certain domains.
在一个正常,高效,健康快乐的环境里,人们不会大声跟你说你做得有多差,但他们会称赞你做得很好,因而导致人们在某些方面,自我评价膨胀。
the opportunities that you have here down at Los Angeles and just the whole environment.
你在洛杉矶可得到的机遇,还有整个的环境。
If you think about the modern food environment compared to the ancient one, so let's say somebody getting something at a fair compared to the old days.
如果将现在的饮食环境,与过去的相比,例如比较在现在和过去的人们,在集市上能买到哪些东西
If at the end of the semester you take a three-hour exam in a closed environment and you answer everything, I don't care what you did in your homework or your Midterm.
如果在学期末的时候,你能在独立地完成3小时的考试,答出所有题目,那我就不会计较平时作业和期中测试了
These foods are heavily marketed, they tend to be sold in schools, there tend to be mini markets right outside the schools so people can get them on the way to and from schools at many places, and this is the food environment.
这些食品非常热销,一般在学校附近有售,学校外面一般都有小型超市,这样人们就可以在上学放学路上买到它们,这就是所谓的食物环境
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