原因:未知。
关于其死亡的原因至今还未知晓。
也可能有某种至今未知的原因导致心血管疾病。
Or there may be an as yet unknown cause of some cardiovascular pathology.
事故的原因是未知的。
由于未知原因,网络尚未准备好。请稍后再试一次。
The network is not ready for some unknown reason. Please try again shortly.
昨天已是历史,明天还是未知,而今天则是一个上天的礼物:那就是我们为什么称它为“现在”(Present)的原因。
Yesterday is history, Tomorrow is a mystery and Today is a gift: that’s why we call it ‘The Present’
孤独症的发病原因尚未知,但几种基因会起到作用。
The cause of autism is not known, but several genes may play a part.
在大多数情况下,先天性心脏病,原因是未知之数。
In most cases of congenital heart disease, the cause is unknown.
该相关性的原因仍未知,因此需要进行进一步研究。
The cause of this association is not known warranting further investigation.
该相关性的原因仍未知,因此需要进行进一步研究。
The cause of this association is not known warranting further investigation.
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