a long and important river in Eastern Europe. It starts in the Black Forest in Germany and goes through Austria, Hungary, and Romania into the Black Sea.
1. Experts say the treaty could serve as a model for protecting other rivers in the region, including the Oder and Danube. 专家们说该条约可被视为保护该地区其它河流，包括奥德河和多瑙河在内，的典范。
2. Now the Danube confronts a modern adversary---pollution. 如今多瑙河面临着一个现代敌人---污染。