硝酸盐由土壤渗入江河。Nitrates leach from the soil into rivers.江河湖泽给我们以舟楫和灌溉之利.Rivers and lakes provide us with water transport and irrigation.江河流入海中.Rivers flow into the sea....
萨拉一直小病缠身。Sarah had been plagued continually by a series of minor illnesses.我有点小病。I've caught some kind of lurgy.他们批评那个懒汉夸大自己的小病而不肯干活.They criticized the lazybones for playing up his slight illness....