《汉书·传·荆燕吴传》
将军则深挖战壕，高筑壁垒，派出轻装部队守住淮河、泅水的出入口，断绝吴国的粮饷供给。
将军深沟高垒，使轻兵绝淮泗口，塞吴饷道。
The general should then dig deep trenches, build high fortifications, and send light troops to defend the entrances to the Huai and Sui rivers, cutting off Wu's supply of food.