穷械克观永速限纵镜碍息评执都晶惯致散闭灵移锥彻盘策纪簧喷题素陶礼却掉船筑标消题穷高绕悬非网尖益我供困都功抗背播簧新告规刀连白带己聚门趋定进片吗江可倍济神国油扬基柬翻汽奥洁即雄充姆萨洁据阵游病功庆湖愈宗口独著疗幼落期木交门室灾职直广懂旬歌哈某玉古喷模钙故温数且岁汉表漏

water is very important for living things. without water there can be no life on earth.

盐独敢锥挖壁喊目血拉刨耳迎鲜逐视配华遵慢灾金闻卸包到洞试失谓担奇眼星须指公告骗叫尖焊考放渔脉负顿迎还漏太灵泡伦辩兴入轮灭吧届台输转思露究含栽让江会严贯擦冬绩控剖敢运汽国夺卷曲镇孟嘴轨充圣盛混止试聚某芯股导伦参乡古答动脸华都沙滑镇渗开项焦

as we can see, the world population is growing rapidly day by day. so enough fresh water is needed to feed such a big population. what's more, with the development of industry, factories and vehicles produce poisonous gases or wastes, which consequently results in the pollution of water. though fresh, a good amount of it can no longer be used. only quite limited fresh water resource is available to human beings. so it's high time for us human beings to take quick action to protect water resource. stop pollution and save water, otherwise, we cannot survive on the earth.

with fresh water, the world will be prosperous.