West Africa's mangrove forests absorb thousands of tons of carbon dioxide, and could be a way for the region to get a foothold in the $136-billion carbon world market.

VOA: standard.2010.03.29

I sink in deep mire, where there is no foothold.

我身陷泥潭中，找不到立足点。

耶鲁公开课 - 旧约导论课程节选

I sink in deep mire, where there is no foothold.

我身陷泥潭中，找不到立足点。

耶鲁公开课 - 旧约导论课程节选