1.The one-child policy is not the sole cause, as India shows, but it has contributed to it.
因为印度也有类似的情况：独生子女政策并非唯一导因，但却促成了事件的发生。
2.And if religion were the sole cause of the conflicts, it would be easier to work out "why they hate us" .
如果宗教是冲突的唯一原因，那么明白“他们为什么憎恶我们”就更容易理解。
3.Hormones alone aren't the sole cause of obesity but they might be a factor that links obesity to diabetes.
单荷尔蒙并不是肥胖的唯一原因，但其可能是连接肥胖和胰岛素的因素。
4.However, Pettis and others said while the parasite nosema cezanne may be a factor, it cannot be the sole cause.
然而，Pettis和其他人说，也许寄生微粒子虫是一个因素，但肯定不是唯一的原因。
5.To reclaim me from this course of life was the sole cause of his journey to London.
他伦敦之行的首要目的是使我改过自新。
6.As Blaise Pascal wrote in 1670, "The sole cause of man's unhappiness is that he does not know how to stay quietly in his room. "
布莱兹•帕斯卡1670年写到：“人们之所以不开心，追根到底，是他不知道如何安静地呆在自己的房间里。”
7.Several rail experts have said they doubt that lightning was the sole cause of the crash.
几位铁路专家说他们怀疑闪电是造成火车相撞的唯一原因。
8.Viruses are not the sole cause. Our immune systems can turn on the liver to produce autoimmune hepatitis.
我们的免疫系统可以打开肝脏产生自身免疫性肝炎。
9.Similarly, superstar effects are not the sole cause of the stagnant incomes of regular Joes.
同样的，超级明星效应并不是导致普通工人收入停滞不涨的唯一原因。
10.But the virus itself cannot be the sole cause of colony collapse disorder.
但是病毒本身不可能是蜜蜂王国瓦解的唯一原因。