a species of insect previously unknown to science
科学上以前尚未了解的一种昆虫
He was trying, for some unknown reason , to count the stars.
不知何故，他试图数星星。
The man's identity remains unknown.
这名男子的身份还是个谜。
an unknown actor
没有名气的演员
The author is virtually unknown outside Poland.
在波兰以外，这位作者实际上鲜为人知。
The disease is as yet unknown in Europe(= there have been no cases there) .
这种疾病至今尚未在欧洲出现过。
It was not unknown for people to have to wait several hours(= it happened sometimes) .
人们得等几个小时的事时有发生。
Unknown to me, he had already signed the agreement.
他背着我已签了协议。
Unknown to me, he had already signed the agreement.
他背着我已签了协议。
a journey into the unknown
探险之旅
a fear of the unknown
对未知事物的恐惧
A young unknown played the leading role.
演主角的是一个名不见经传的年轻人。
There are so many unknowns in the proposal.
这项提案中的未知数太多了。
X and Y in the equation are both unknowns.
等式中的 X 和 Y 都是未知数。
1.未知的,未详的;未被发觉的
2.数不清的,无数的
1.未[不]认识的人[物];【数】未知数[量,元]
1.if something is unknown, people do not know about it or do not know what it is
2.not famous
1.someone who is not famous
2.everything that you do not know or have not experienced
3.something that you cannot imagine or prepare for because you know very little about it; something that you do not know
1.Did she think about this unknown relative who would have first choice? Did she wonder what he would be like?
她会不会思忖那位不知名的亲属究竟是个怎麽样的人？
2.Kyle Katarn found Daye corrupted by the dark side of the Force by an unknown evil Force-user.
凯尔·卡塔恩发现一个不明身份的邪恶原力使用者利用原力黑暗面腐蚀了达耶。
3.He found a terran outpost that had been infested by unknown alien organisms.
他发现人类前哨站已遭到未知外星生物旳感染。
4.Read the parable on forgiveness below, author unknown, and see if it inspires you to forgive someone you've been harboring a grudge against.
阅读下面这篇关于宽容的寓言，作者不详，然后看一下这篇寓言是否能鼓励你宽恕曾经让你很反感的人。
5.And though it can be off-putting at times, it is essential that we know just how much remains unknown.
尽管这偶尔会很不愉快，但是我们毕竟了解到我们不清楚的还有多少。
6.Opportunity does not avail them; outcomes remain unmarked and the appropriate ends to which they might be working are unknown to them.
机会帮不到他们；结果仍是未知，他们也不知道自己应有何种结果。
7.The boat crew spoke no English and after an hour of bouncing around in a speedboat we ended up on an unknown island.
船员们不会讲英语，在一个小时的晃动乘快艇我们结束了在一个未知的岛屿。
8.The entombment in London attracted over one million people within a week to pay their respects at the unknown soldier's tomb.
伦敦冢在吸引无名战士墓超过百万人在一周内支付他们的敬意。
9.Of course he spoke with a conventional sense of duty only, for that sort of wondering had not been unknown to himself in bygone days.
当然，他说这话的时候，是出于一种习惯的责任感，因为在过去他自己也不是没有产生过这样的疑问。
10.Look it up in the dictionary, and you'll find news described as "a report of recent events or previously unknown information. "
字典对新闻的定义是“对于最近事件或先前未知资讯的报道”。