Empty paddle boats await rowers at the main cave entrance at Puerto Princesa Subterranean River National Park in the Philippines.
菲律宾的公主港地下河国家公园的主洞入口处,停靠着几只空空的桨船,在等待桨手的到来。
2
Ramesh says India has undertaken a 10-year program to ensure no untreated industrial effluent or urban sewage is released into the country's mainriver, the Ganges.