If we do not fully understand what we have been taught in the week , how can we expect to understand next week s lessons 如果我们连本周所学的知识都不能完全消化，那又怎能掌搔好下一周的知识呢
Fatigue is a major cause of road crashed , yet the dangers of fatigue and its impact on driving are not fully understood 疲劳是交通事故的一个重要原因，但是疲劳的危险和它对驾驶的影响尚未被完全重视。
Fatigue is a major cause of road crashed , yet the dangers of fatigue and its impact on driving are not fully understood 疲劳是交通事故的主凶，然而人们还未充分意识到疲劳的危险以及它对汽车驾驶的影响。
Fatigue is a major cause of road crashed , yet the dangers of fatigue and its impact on driving are not fully understood 疲劳是交通事故的主要原因，但是疲劳的危险以及它对驾驶的影响并没有得到全面认识。
Fatigue is a major cause of road crashed , yet the dangers of fatigue and its impact on driving are not fully understood 疲劳是路上交通事故的主要原因，但是人们没有充分了解疲劳的威胁和它对驾驶的影响。
Fatigue is a major cause of road crashed , yet the dangers of fatigue and its impact on driving are not fully understood 疲劳是交通意外的主要诱因，然而疲劳的危险及其对驾驶的影响并没有得到充分的理解。
It adds transparency effects ( not actual transparency , but well it looks like that ) , although it ' s not fully understood yet 增加了透明特效（实际上不是透明的，但是看起来像透明的： ） ） ，是不是听迷糊了？
Fatigue is a major cause of road crashed , yet the dangers of fatigue and its impact on driving are not fully understood 疲劳是道路车辆事故的主要原因，但劳累的危害和其对驾驶车辆的影响却没充分地得到重视。
Fatigue is a major cause of road crashed , yet the dangers of fatigue and its impact on driving are not fully understood 疲劳是一个是道路事故中的一个主要原因，但疲劳的危险性及其对驾驶的影响并未完全被理解。
Fatigue is a major cause of road crashed , yet the dangers of fatigue and its impact on driving are not fully understood 虽然疲劳的危险以及它对驾驶的影响还未被完全理解，但它却是引起公路交通事故的主要因素。
