by the run短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 adv.突然迅速地 The result shows that there is self purification capacity to pollutants in the reservoir and it is stable, and slightly affected by the run off, water quality and temperature. 结果表明，库水对原水中各类污染物都有较强的自净能力，且受径流量、水质和水温影响较小。 cnki The roof came down by the run. 那屋顶突然塌了下来。1stenglish