translation.en: But today, ultralight, ultrastrong materials, like carbon fiber composites, can make dramatic weight savings snowball and can make cars simpler and cheaper to build.
translation.zh: 但在当今，超轻、超强度的材料 比如碳纤维复合材料 能让显著减轻车子重量 并使汽车的制造变得更简单，价格更便宜