water swelling and conservation的用法和樣例：
例句
- A river warden, on the water, has absolute power and knows all that goes on there.
做水保的人照例是水上一霸，凡是屬於水面上的事情他無有不知。 - The runoff and sediment yield is affected by the process of rainfall and the function of water and soil conservation measurement.
棄土場區域內產流受到降雨特徵和水保措施功能發揮的影響。
