原因不明的死亡是难以接受的。
造成死亡的直接原因不明。
这就是它被称为不明飞行物的原因！
由于受年龄歧视，长期失业，这些人现在已经在招聘候选者中处于底层，再加上剩余就业年限较短，种种原因都说明，在他们身上投资是不明智的。
Discrimination by age, long-term unemployment, the fact that they're now at the end of the hiring queue, the lack of time horizon just does not make it sensible to invest in them.
去年四月，当我回到那儿，这条龙的头部由于不明原因而倒塌了。
When I returned there last April, the dragon's head has collapsed for unknown reason.
但由于一些不明的原因，身体发现这蛋白有点不妙。
But for some unclear reason, the body looks at the protein and sees Trouble.
任何疾病特别是原因不明的新的传染性疾病，都是全人类的共同敌人。
All diseases, particularly new infectious diseases of unknown causes, are common enemies to entire mankind.
西班牙警方表示，死亡原因不明，现场也没有打斗的迹象。
Spanish police said the cause of death was unknown and there were no signs of violence.
印第安人指控说，沿纳波河，亚马逊河的一个支流，人们患上不明原因的疾病。
Indians charged that alongside the Napo River, a tributary of the Amazon, people fell ill from unknown diseases.
抗生素的质量也是原因之一，但就结核病而言，这一因素的作用到底多大尚不明了。
Quality of antibiotics also contributes, although in the case of tuberculosis the true extent of this is unknown.
自闭症的发病率男孩较高，是女孩的四倍，原因不明。
For unknown reasons, autism is four times more likely to occur in boys than in girls.
如果原因不明，那就应当执行实例的完全恢复。
If the cause is unknown, then you should perform a full recovery of the instance.
对于日本而言，这个消息就如同拼图上的关键一角，为解决多起原因不明的失踪案件提供了线索。
For Japan the news was the piece of a jigsaw that went towards solving the puzzle of numerous unexplained disappearances.
不过原因不明的体重突降也许更值得担。
But sudden, unexplained weight loss can be even more worrisome.
他的同事说，2004年他失去了工作，原因不明。
In 2004, colleagues said, he lost that job for reasons that were not clear.
但原因不明。
人们不会因为愚蠢的或者武断的原因而支持实践，但是会因为他们要缓解在外行看来不明显的压力而那么做。
People don't sustain practices for silly or arbitrary reasons, but because they resolve some tension that may not be evident from outside the group.
“我们仍不明白引起这些差异的原因，但我们计划下年来研究这个问题，”他说。
"We don't yet know why these differences occurred, but plan to studyit in the next year, " he said.
但这个新创说法是不明智的，并非仅仅基于上述原因。
我不明白为了什么原因。
失败的一个主要原因是不完整的、含糊的或不明确的需求。
One primary cause of failures is incomplete, vague, or ambiguous requirements.
而这种药物仍然作为治疗不排卵或原因不明的不育症的一线药物，尽管，一份2008年研究报告曾经对这种药物对原因不明的不育症是否真的有效果，提出质疑。
The drug is still widely used as a first-line treatment for anovulation and unexplained infertility, even though a 2008 study raised serious questions about whether it does much about the latter.
如果想出家是出于不光彩的原因，则只会生成过错，而且是不明智的！
To be a monastic out of ignoble reasons creates demerits and is unwise!
狂犬病最初症状是发热，伤口部位常有疼痛或有异常或原因不明的颤痛、刺痛或灼痛感(感觉异常)。
The initial symptoms of rabies are fever and often pain or an unusual or unexplained tingling, pricking or burning sensation (paraesthesia) at the wound site.
虽然官员声称死亡的原因是不明病毒，该监狱的总监自己也以疏忽的罪名被逮捕了。
Though officials claim that the deaths were due to a mysterious virus, the prison director is now himself under arrest, charged with negligence.
有几位曾患不明原因骨折的女士旁听了这次会议。
Several women who have suffered the unusual fractures testified at the meeting.
有几位曾患不明原因骨折的女士旁听了这次会议。
Several women who have suffered the unusual fractures testified at the meeting.
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