It had been the first time people moved beyond their small planet into the huge solar system.

VOA: special.2009.07.29

I'm going to talk about - take sort of the general concepts that we talked about last time and talk about how they apply in two physiological systems, the nervous system first and then the immune system.

我将要谈到几个基本的概念,我上节课已经讲过一些了,再讲讲这些概念在两个生理系统中的应用,首先是神经系统然后是免疫系统

耶鲁公开课 - 生物医学工程探索课程节选

So now I have my first of my two slopes, in terms of something that's related to my system the heat capacity of the system.

好，我们现在得到了，两个微分式中的一个,它等于与系统密切相关的一个量。

麻省理工公开课 - 热力学与动力学课程节选

The city's urban transportation system recently launched the first of up to five hydrogen buses.

VOA: special.2009.09.07

An automobile approaching with a souped-up audio system in it, and what sound do you hear at the very first?

一辆大声开着音响的汽车开来,最初,你会听到什么声音

耶鲁公开课 - 聆听音乐课程节选

Of course,with signers,their first language has no written system at all, just hand gestures.

VOA: special.2011.04.13

For the first time, the philosophy department has just switched over to the online discussion section registration system.

哲学部门，第一次被替换,成为在线讨论注册系统。

耶鲁公开课 - 死亡课程节选

After their first tests, the researchers cleaned the water system with chlorine dioxide.

VOA: special.2011.04.06

The first thing we are going to do is describe the energy of the system.

首先我们要做的,是描述这个系统的能量。

麻省理工公开课 - 固态化学导论课程节选

But the White House says he chose Ghana for his first presidential visit to Africa south of the Sahara because of what he considers its strong democratic system.

VOA: special.2009.07.11

This will be the first real example where we've talked about the physiology of an organ system together with engineering approaches to modulate that organ, and that will continue throughout the semester.

届时我们将第一次真正地把,器官系统生理学,与调节器官功能的工程学方法结合起来,这方面内容将贯串我们整个学期

耶鲁公开课 - 生物医学工程探索课程节选

"It's a big deal. How big a deal you have to measure piece by piece but clearly it is the first major change in our health care system since nineteen sixty-five so that's a long time coming."

VOA: special.2010.03.27

OK, so w, first of all, work is being done to the system on the left hand side here.

好的，首先,我们通过左边对系统做功。

麻省理工公开课 - 热力学与动力学课程节选

"The first thing is corruption, the education system, and we need more universities to be built in Namibia,"

VOA: standard.2009.11.28

that 'we tried initially, during the first three years of Gorbachev's tenure, to improve the system accelerate it but keep it intact.

VOA: standard.2009.11.03

The first 3D home entertainment system, according to Panasonic, its manufacturer, was sold to Brad and Ashley Katsuyama in New York for $3,100.

VOA: standard.2010.03.11

Moscow also sees the missile-defense system as the first step in a worldwide American missile-defense program.

VOA: standard.2009.07.15

Urbonas says communities there must focus first on developing a proper wastewater treatment system.

VOA: standard.2010.08.04

His latest statement focused on the need to correct flaws in the aviation security system that allowed the would-be bomber to board the Detroit-bound flight in the first place.

VOA: standard.2009.12.29

They carved the first hiking trail to the top of Mt.Whitney, the highest mountain in the continental United States and they built the first museum in the National Park system.

VOA: standard.2009.11.25

"What is incredibly positive about the way the demonstration has come together is it is different groups of workers,students, different people that are affected by the crisis that is kind of gripping the system, actually coming together to say that collectively we can fight back and argue to put out priorities first,".

VOA: standard.2009.03.28

The first step uses a bit of influenza DNA to get the patient's immune system to begin fighting off the flu, and then the protection is given a "boost" some time later by the second step, which can be either another bit of DNA or a conventional flu vaccine.

VOA: standard.2010.07.21