1. Obstacles are challenges for winners, and excuse for losers. 障碍对胜利者是挑战，对失败者是借口。
2. The traditional knowledge and belief system of our people are seen as obstacles to development. 这些传统的知识和信仰体系被视为世居民族发展的巨大障碍。
3. These aesthetic and technological wonders span rivers, and other obstacles with enough strength to support endless streams of cars and trucks. 这些审美和科技的奇迹跨越大河以及其他障碍物，用足够的力量来支撑无尽的车流。
