Local authorities have been advised to take precautions against urban water logging and natural disasters.

有关部门建议当地政府采取预防措施，谨防城市内涝或自然灾害发生。

It's the first-ever urban water reservoir built in the middle of the city-state.

这是建在城邦中部的第一座城市水库。

Song Lanhe, chief engineer for urban water quality monitoring at the housing ministry, says only half the water sources in cities are safe to drink.

建设部城市水质监测中心总工程师宋兰合说，城市水资源中仅有一半能供人安全饮用。

It says reservoirs will continue to replenish the water supply in areas affected by drought to ensure the irrigation of crops and urban water supplies.

该部门表示，水库将继续为受干旱影响的地区补充供水，保障作物灌溉和城市供水。