Progress in the development of renewables could be fragile, however, if fossil fuel prices remain low for long.

然而，如果化石燃料价格长期保持低位，可再生能源的发展进程可能会非常脆弱。

youdao

It has taken away mountains, and it has prepared the way for all progress and development of the society.

它去除了障碍，为社会的所有进步和发展铺好了道路。

youdao

This was to occur with progress in the development of the steam engine.

这是随着蒸汽机的发展进步而发生的。

youdao

The World Bank says most developing countries have made important progress toward the United Nations' Millennium Development Goals.

VOA: special.2010.04.26

But it led to the development of another art program called the Works Progress Administration's Federal Art Project.

VOA: special.2009.03.23

He says progress and economic development depend on educating girls as well as boys.

VOA: special.2010.05.20

This holds back progress towards development targets and prevents rural economic growth.

UNESCO: Detailview | United Nations Educational, Scientific and Cultural Organization

What this shows is that structural features of the military marketplace reduce the value of competition as technology programs progress from development to production to fielding.

FORBES: Why Adam Smith Isn't Welcome In The Defense Industry

"I do not have any incentive other than serving the people and the country and I do not think of anything but the progress and development of the nation, " Mr Ahmadinejad said.

BBC: Defiant Iran president takes oath