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- The causes of pedophilia are unknown. 尚不清楚娈童癖的形成原因。
- The chronic Glomerulonephritis is an immune disease originated from the inflammation of glomerule, Its cause was unknown in most cases.Most cases are not transmitted acutely. 摘要慢性肾小球肾炎是由多种原因引起的原发于肾小球的一组免疫性炎症性疾病。
- “The exact causes are unknown,” said Dr.Gilles Lavigne. "的确切原因不明，博士说： "吉尔斯拉维涅。
- So far, their whereabouts are unknown. 目前他们两人下落不明。
- The origins of the custom are unknown. 该风俗起源不详。
- The origins of some words are unknown. 这些词的起源是不知的。
- However, the habits of horseshoe crabs are unknown. 不过鲎的习性尚未为人所知。
- The dates of Arda's birth and death are unknown. 阿尔达的出生与死亡日期则不明。
- Wu Cheng'en's dates are unknown. 吴承恩生卒年月不详。
- So it is! So it is! The causes are just like this. 如是如是如是因。
- Finaly the drought causes are investigated. 最后，探讨了干旱气候形成的主要原因。
- Critics say there may be unknown risks. 评论家称，可能存在未知的风险。
- Things are invested with mystery in the degree that their origins and causes are unknown 事情掩盖(掩没)在神秘的气氛中，无人知道它的来源和起因。
- The actual size and content of Aristotle's library are unknown. 亚里士多德图书馆的实际规模和藏书内容已无从知晓了。
- These causes are mostly unassociated with the movement of water. 这些因素大部分是与水的运动无关的。
- The time and place of the breed's origin are unknown. 此一品种原产于何时何地并不清楚。
- The causes are maniffold,bbut can be reduced to tthree. 原因是多方面的，但归结起来，不外乎三点。
- His name was unknown to the world. 他的名字不为世人所知。
- The causes are few, but the reasons given are numerous. 其原因屈指可数，但提出的理由却难以胜计。
- He is now AWOL from the military, and his whereabouts are unknown. 他正在从军事党籍;他的下落不明.
