Springs and rivers that drain into lakes carry dissolved nitrates and phosphates.流入湖中的泉水和河水携带了溶于水的硝酸盐和磷酸盐。Nitrates are chemicals that occur naturally in water and the soil.硝酸盐是水和土壤中自然存在的化学物质。Nitrates leach from the soil ...
真正的危险是该国东部地区的民众动乱。The real danger is civil unrest in the east of the country.更加危险的动乱区在首都之外。The more serious flashpoints are outside the capital.军队最终平息了动乱。Troops eventually quelled the unrest....