氨氮污染是导致江河湖泊水体富营养化的主要因素之一。
1·Because white castle towers aloft to go up in high hill, its all around annulus hill and laky.
由于白色城堡耸立在高高的山上，其四面环山和湖泊。
2·Lake smooth cliff is located at Guangdong to visit the southwest department of Zhan Jiang city, it is an area what have 2.3 square kilometre only is laky.
湖光岩坐落于广东省湛江市的西南部，是一个面积只有2.3平方千米的湖泊。
3·The information of each respect, each course, each industry, those who make we swim to information from information ocean is laky in.
各方面、各学科、各行业的信息，使我们从信息海洋游到信息的湖泊里。