Early explorers told tales of lakes that smoked, as if on fire. 早期探险家看到这种湖面上“冒烟”的情景 还以为是湖底着了火
but some end their journey in vast lakes. 可有些河流的终点却是大型湖泊
Worldwide lakes hold twenty times more fresh water than all the rivers. 全球湖泊淡水储量比江河多20倍