音标:['frænsiәm] ;
n. 钫
[化] 钫
n. a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
词型变化:名词复数形式 : franciums
【近义词】
  • FR故障率(=failure...

We don't really know for sure because we have nothing else to compare our own existence to, 我们确实不知道,因为我们没有任何别的东西可以用来跟我们自己的存在进行比较。 but it seems evident that if you wish to end u

发表于:2019-02-25 / 阅读(54) / 评论(0) 分类 万物简史
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