精选优质文档-倾情为你奉上advanced science 尖端科学scientific invention 科学发明exert a far-reaching impact on对产生深远影响double-edged sword 双刃剑earth-shaking changes 翻天覆地的改变lay a solid foundation for 为打下良好的基础energy crisis 能源危机depletion of resources 能源消耗milestone 里程碑sophisticated equipment 尖端设备technical innovation 科技创新over-commercialized 过渡商业化的a heated discussion 热烈的讨论exhaust gas 废气disastrous 灾难性的compared to/with 与相比speedy and comfortable 既快捷又舒适opposite forces 负面影响potential hazards 潜在危险pose