Miz Lisagore says some readers have decided to work harder to protect the environment.

VOA: special.2009.04.22

That's the work that the system is doing to the environment. I'm doing work to the environment. The work is negative, which means that work is being done to the environment.

功的大小,就是矩形的面积,这样我们就实现了一台热机，冷却，加热，加热,冷却，系统回到了初态。

麻省理工公开课 - 热力学与动力学课程节选

I think we all understand the importance of children growing up together and having the opportunity to work together to become friends, to learn the results of conflicts and to basically interact in a social environment.

我们都明白,孩子共同成长,有机会合作是很重要的,他们要成为朋友，要知道发生冲突的后果,要在社会环境里互动。

麻省理工公开课 - 媒体、教育、市场课程节选

"We work with schools to get unhealthy foods out of the schools and promote health foods within the school environment.

VOA: standard.2010.06.23

Wirr Minus w irreversible, this is the work which is done to the environment by the system, -Wrev minus w irreversible is always smaller than minus w reversible.

一点提示，不可逆过程中系统,对外界做的功，总是小于,之前我们。

麻省理工公开课 - 热力学与动力学课程节选

Henry says a nuclear-free world also means that countries need to work together and create an environment that will help prevent international conflicts.

VOA: standard.2010.08.06

U It's u, because u is to q plus w right, heat and work, but it's adiabatic. So there's no heat, exchange with the environment, and it's constant volume, so there's no p dV work, right.

什么是零？是U，因为,等于q加w，热量和功，但这是绝热的，所以系统与环境间没有热量交换；,同时它是灯体的，所以也没有pdV形式的功。

麻省理工公开课 - 热力学与动力学课程节选

Kenyan national Wangari Maathai won the 2004 Nobel Peace Prize for her work in the Green Belt Movement, an organization that engages in tree-planting activities and environment conservation.

VOA: standard.2010.02.24

It is other matters of course that one might regard as constituting the spirit and environment in which the GPA should work which must now be attended to,".

VOA: standard.2009.09.12

"To restore a more stable financial and economic environment, in which opportunity can again flourish and in which Americans' hard work and creativity can receive their proper rewards,".

VOA: standard.2009.08.25

"We appreciate the sacrifices of German soldiers in Afghanistan, and our common work there to bring peace and stability to Afghanistan, and to create the environment in which the Afghan people themselves can provide for their own security,"

VOA: standard.2009.11.03

"I think the prospects are good." "There are a lot of players that have come in - and there's a lot of support from organizations such as the WHO I think that creates a good environment where people can work and make progress in getting together a new vaccine."

VOA: standard.2010.07.12