an unknown
网络释义
Letter From An Unknown Woman 一个陌生女人的来信 ; 一个生疏女人的来信 ; 一个生疏男子的来信 ; 巫山云
an unknown quantity 难预测的事
An unknown goddess 无名女神 ; 第三课
an unknown artist 一个默默无闻的艺术家
An unknown error occurred 发生了一个未知错误 ; 发生未知的错误 ; 发生一个未知的错误 ; 出现未知的错误
An unknown has occurred 发生一个未知 ; 发生了一个未知 ; 出现了一个未知
an unknown plant 一种不知名的植物
双语例句原声例句权威例句
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The young man sat safe within, till at length it ran ashore upon an unknown land.
年轻人安全地坐在里面，直到最后它漂到一块陌生的陆地上。
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他是个没有名气的作家。
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An unknown number of demonstrators were arrested.
不知多少示威者被逮捕了。
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Diakite,who is also known as Toumba, escaped the attack and is still at large with an unknown number of soldiers from the presidential guard.
VOA: standard.2009.12.07
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I could take an unknown gas and put it in and measure it and then say, wow, those are the lines that are characteristic of sodium.
我取一种未知气体，把它放到管里,然后检测它，哇，这些线是钠的特征。
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Therefore, it'll compress by an unknown x, which is equal to mg divided by the force constant of the spring.
因此它的压缩量为 x,也就等于 mg 除以弹簧的弹性系数
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