Rock walls made of wood or concrete have places for the climber's hands and feet.

VOA: special.2009.12.09

Now let's just make this more concrete for you.

说得再具体点

耶鲁公开课 - 博弈论课程节选

And the person we have to thank for actually giving us this more concrete way to think about what a wave function squared is is Max Born here.

需要感谢，马克思，波恩,给了我们，这个波函数平方的,具体解释，事实上。

麻省理工公开课 - 化学原理课程节选

For example,he created a triangle-shaped walkway of steps that sits inside a rounded concrete shell.

VOA: special.2009.12.13

She calls for concrete and immediate action to hold perpetrators accountable, particularly since sexual violence continues to take place on a daily basis.

VOA: standard.2009.09.12

Libyan Ambassador Ali Aujali agreed, but said the Arab world is waiting for some concrete policy changes, especially in regard to Israel's continued expansion of settlements in the West Bank.

VOA: standard.2009.04.24

U.S.officials indicated that they're prepared to wait a few more days for an Iranian response to the nuclear proposals, but that the Obama administration expects concrete action and does not have unlimited patience.

VOA: standard.2009.10.24

But Wednesday,the U.S.Senate joined the House in refusing the president's request for $80 million to close Guantanamo, saying he must first come up with a concrete plan to deal with the remaining 240 detainees.

VOA: standard.2009.05.21

U.S.officials say they're willing to wait a few more days for an Iranian response to the nuclear proposals, but they say the Obama administration is looking for concrete action and does not have unlimited patience.

VOA: standard.2009.10.24

Clinton paid tribute to two aid initiatives of the Bush administration the Millennium Challenge Corporation which makes grants to countries with concrete plans for good governance and fighting corruption,and PEPFAR the anti HIV-AIDS program which has provided millions of Africans and others with anti-viral medications.

VOA: standard.2010.01.06

"We're looking for concrete steps. And we take it as a positive sign that they've agreed in principle to take a couple of significant steps the opening of the Qom facility, and then working out a procedure for having their low-enriched uranium re-processed in another country.

VOA: standard.2009.10.24

"This is a time where business community looks for specific concrete moves by the government so that we are able to build confidence and bring confidence back to the system and at the same time we'll be able to help promote more trade and investment,".

VOA: standard.2009.11.11