frightening future的用法和樣例：
例句
- When Vazquez hurt Priolo in the ninth round, his frightening killer instinct kicked in and Priolo was destroyed.
第九回合，瓦茲奎茲再現其駭人的殺手本色，對手普里奧羅隨即被塗炭。 - For city dwellers, urbanization threatens frightening hazards from infectious disease unless adequate sanitation measures supply clean water and remove wastes.
對城市的居民而言，都市化的駭人風險就是傳染病，除非有適當的衛生設施供應清水，清理垃圾。
