《明史·志·卷六十二》
夏秋洪水来临苦于水淹，冬春河水细小苦于不通畅。
夏秋水涨苦潦，冬春水微苦涩。
In summer and autumn, when the flood comes, it suffers from flooding, and in winter and spring, when the river is small, it suffers from not being navigable.