地狱两周，心灵重生。极限挑战第4季免费观看

　　The U.S. Army Special Forces Green Berets are America's unconventional warfare specialists. Whereas the military's focus usually is on brute-force tactics, the Green Berets rely on creative, innovative and stealthy tactics to destabilize an enemy from within. They are experts in guerrilla warfare, sabotage, and subversion. They live as the locals do, and they live by their wits... (展开全部)