There are many unknowns in science.
科学上还有许多未知
处。
的的人；[数]未知数名英雄明显病因的发烧There are many unknowns in science.
科学上还有许多未知处。
Those explorers gallantly adventured on unknown seas.
那些探险家们大胆地在陌生的海域探险。
The origins of some words are unknown.
这些词的起源是不知的。
Our new director is still an unknown quantity.
我们对新来的主管知甚少。
The championship was won by a complete unknown.
个名不见经传的人赢得了冠军。
Unknown to me, he had already signed the agreement.
他背着我已签了协议。
Motherhood was for her a journey into the unknown.
做母亲当时对她来说是开始次探险
。
An unknown man has stolen all her money.
个陌生人把她的钱偷光了。
Scrotal calcinosis: Is the cause still unknown?
病因是否仍不清楚?
In algebra, the sign X usually denotes an unknown quantity.
在代数里, 符号X常用来表示未知数。
People usually infer an unknown fact from a known fact.
人们通常从已知的事实中推断未知的事实。
Their football team bowed out of the competition with unknown reasons.
不知道为什么他们足球队退出了比赛。
Life can be likened to a journey with an unknown destination.
生活可以被比作次不知目的的行。
Yesterday’s riot broke out at the instigation of an unknown politician.
昨日的暴乱是由个不知名的政客煽动起来的。
Matter is an unknown somewhat .
物质是某种不明的东西。
Some Austrians, ungratefully, nicknamed it the “Looter's memorial” or the “Unknown rapist”.
些奥地利人不仅不心怀感激，并且将它称为“侵略者的纪念馆”或者“不为人知的强奸犯”。
Her present whereabouts are still unknown.
她现在下落不明。
It was unknown country to me.
这地区对我说来是陌生的。
She was then still comparatively unknown.
她那时候还不怎么出名。
The cause of autism is unknown.
自闭症的病因尚不清楚。
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