Their football team bowed out of the competition with unknown reasons.
知道为什么他们足球队退出了比赛。
知的；陌生的，默默无闻的知的事物，默默无闻的人；[数]知数
确定的;
确认的;被发现的;经勘探的;清楚的;知事件;见的，看见的;
的;特别指出的;经检验的;知数
英雄
病因的发烧Their football team bowed out of the competition with unknown reasons.
知道为什么他们足球队退出了比赛。
The origins of some words are unknown.
这些词的起
知的。
The championship was won by a complete unknown.
一个见经传的人赢得了冠军。
An unknown man's dismembered body was found by the police in the suburb woods.
警察在郊区的小森林里发现了一个知的男人的碎尸。
People usually infer an unknown fact from a known fact.
人们通常从已知的事实中推断知的事实。
He lived well, helping the poor, and all other people; he died penniless and unknown.
他生前讲道德, 总帮助穷人以及所有的人; 后来却一文, 默默无闻地死了。
Yesterday’s riot broke out at the instigation of an unknown politician.
昨日的暴乱由一个知的政客煽动起来的。
Life can be likened to a journey with an unknown destination.
生活可以被比作一次知目的的旅行。
Motherhood was for her a journey into the unknown.
做母亲当时对她来说开始一次探险之旅。
Our new director is still an unknown quantity.
我们对新来的主管知之甚少。
Those explorers gallantly adventured on unknown seas.
那些探险家们大胆地在陌生的海域探险。
In algebra, the sign X usually denotes an unknown quantity.
在代数里, 符号X常用来表示知数。
Unknown to me, he had already signed the agreement.
他背着我已签了协议。
An unknown man has stolen all her money.
一个陌生人把她的钱偷光了。
She was then still comparatively unknown.
她那时候还怎么出。
You must eliminate an unknown quantity.
你必须消去一个知数。
There are many unknowns in science.
科学上还有许多知之处。
Those who dared to launch out beyond the unknown waters became the discoverers of new lands.
那些敢于去人迹至的海域航行的人成了新陆地的发现者。
The cause of autism is unknown.
自闭症的病因尚清楚。
Her present whereabouts are still unknown.
她现在下落明。
声明：以上例句、词性分类均由互联网资
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