APP Water is very important for living things. Without water there can be no life on earth. All animals and plants need water. Man also needs water. Water is found atmosteverywhere. Even in the driest part of the world there is some water in the air. As we all have found out, water may be a solid, or a liquid or a gas.When it isa solid, it may be as hard as brick, When itis a liqui （共 700 字） [閱讀本文] >>
