请根据下列提示用英语制作海报，呼吁人们节约用水。

★ 水是生命之源，无水便无生命；

★ 现代社会对水的需求越来越大；

★ 许多地方缺水，大量的水被污染；

★ 许多人浪费水；

★ 采取措施，与污染及浪费水的行为作斗争。

注意：词数：60左右。

Saving water means saving ourselves!

★ Water is the basic source of life. There would be no life without water.

★ More and more water is needed in the modern society.

★ Many places are short of water; many rivers and lakes are polluted. What’s worse, many people are wasting water.

★ In order to protect water, let’s do something to fight against all kinds of pollution and waste of water.