So in nineteen forty-nine President Truman decided that work on nuclear weapons should continue.

VOA: special.2009.06.14

Like when they devised the first engines or the first nuclear reactors, it didn't work so well at first and then from the experience of many people working on it, over many years, a body of knowledge emerges and that's what we call technology.

这和发明出第一个发动机,或者第一个核反应堆时一样,最开始总是存在很多问题,但随着很多人不断努力去完善它,一种理论体系才得以不断发展,这就是我们所说的科技

耶鲁公开课 - 金融市场课程节选

"And it brings Security Council agreement on a broad framework for action to reduce nuclear dangers as we work toward that goal."

VOA: standard.2009.09.24

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

In the Czech Republic, the president said he laid out a strategy to work with Russia and other nations to stop the proliferation of nuclear weapons.

VOA: standard.2009.04.11

Reif says this improved cooperation is expected to help the U.S.and Russia fight nuclear terrorism and work toward tougher sanctions on Iran for its nuclear activities.

VOA: standard.2010.04.04

"We can work with the Russians, as the two countries with by far the largest nuclear stockpiles, to continue to reduce our dependence on nuclear weapons."

VOA: standard.2009.05.19

The leaders of the world's oldest democracy and the world's largest pledged to work together to strengthen the global economy, curb climate change, limit the spread of nuclear weapons and fight terrorism.

VOA: standard.2009.11.25

"It is going to require more work, but I think that we can get something accomplished there and we can lock down loose nuclear weapons that could fall into the hands of terrorists."

VOA: standard.2009.05.19