四、书面表达。
无论在家里还是在外面，水对我们都至关重要。康康打算向校刊的英语专栏投稿，谈谈水的重要性。请根据下面图表，帮康康用英语写一篇短文。

写作要求：(1)文中须包含图表所有信息，可适当发挥；
(2)意思清楚，表达通顺，行文连贯，书写规范；
(3)词数70词左右(开头已给出，不计入总词数)。
Hello, everyone. Water is important to us.

When we are at home, we can use water to wash clothes and clean our rooms. We also use water to water plants. When we are outside, we can travel by water and play water games. Water is valuable for us. But there isn't much clean water to use. So we must save water. Let's work together to make a difference!