2. The deep river was an insuperable barrier to those who could not swim. 这条河很深,对不会游泳的人是一个难以逾越的障碍。
3. If the court were actually chosen by the disputants after the crime occurred, this might be an insuperable difficulty. 如果实际上是犯罪发生后才由争执者双方去选择法庭,这就会有难以克服的困难。