river run-off的用法和樣例：
例句
- So, it is practical to use the sequential clustering and Markov model to forecast the river runoff.
這說明運用馬爾可夫模型進行河徑流量的豐枯狀態預報是有效可行的。 - Every year, for example, a mother lode of nitrogen drains into the Mississippi River, mostly from agricultural lands, and pours into the Gulf of Mexico.
每年，密西西比河會有一條主河道不斷的灌入氮元素，大部分都是從農業徑流獲得，最終流入墨西哥灣。
