越南战争期间,由柬埔寨通往越南的“胡志明小道”常常车水马龙,大量作战物资是由这条小道被源源不断运往前线,小道成了战争的生命线。可是不久,这一带地区经常为洪水所困,特大洪水冲断桥梁、毁坏堤坝,大批运输车辆常常无奈地在泥泞中挣扎。一 During the Vietnam War, the “Ho Chi Minh Trail” from Cambodia to Vietnam was often busy. A large number of combat assets were continuously sent to the front by the trail, and the trail became the lifeline of the war. However, in the near future, this area was often trapped by floods. The huge floods shattered bridges and destroyed dams. Large numbers of transport vehicles often struggled to fight in mud. one