1·Your brother died of natural causes.
你哥哥是自然死亡。
—— 《柯林斯英汉双解大词典》
2·Having little understanding of natural causes, it attributes both desirable and undesirable occurrences to supernatural or magical forces, and it searches for means to win the favor of these forces.
由于对自然的原因了解甚少，它把所希望的和不希望发生的事情都归因于超自然的或魔法的力量，并寻找方法来赢得这些力量的青睐。
3·So if elected, I will find a cure for natural causes.
所以如果我当选，我会找出一种治愈自然死亡的疗法。
4·So if elected, I will find a cure for natural causes.
所以如果我当选，我就要找出一种治愈自然死亡的疗法。
5·Generally all of these occurrences are the result of natural causes.
一般地说所有的事件都是自然的起因造成的结果。
6·If they had died from natural causes, they would have been different ages.
如果他们是死于自然原因，应该处于不同年龄层才对。
7·Mysterious noises like you heard that seem to have no natural causes.
就象你听到的那些神秘声音，好像没有什么自然的起因。
8·And despite heart disease and cancer, most Americans die of natural causes.
扣除心脏病和癌症，大多数美国人是自然死亡的。
9·Imperial medical records indicated Guangxu's death was due to natural causes.
皇室医疗记录显示光绪皇帝是自然死亡。
10·If the horse has all 4 feet on the ground, the soldier died of natural causes.
如果马匹四脚着地，则士兵是自然死亡。