柯林斯英汉双解大词典
IU
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1.
ABBREVIATION for immunizing unit 免疫单位
双语例句原声例句权威例句
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Vowels, for example, go far beyond a, e, I, o and u, and sometimes y.
比如说，元音远远没有a, e, i, o, u和一些情况下的y这几个字母这么简单。
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It can be likened to a rebus, which uses pictures and single letters, or numbers to represent whole words (e.g, "i <3 u" means “I love you”, b4 means before, lol means laugh out loud, etc. ).
这种短信文是由图片、字母或数字的组合来代表某个单词的，感觉像字谜一样。 比如："i <3 u"就代表“我爱你”（中间的<3像是一颗心的形状，代表“爱”），b4就是before（以前）这个单词的缩写形式，而lol则是laugh out loud（大声笑出来）这三个单词的缩写。
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And, maybe I should also say in words, this is the component of the gradient in the direction of u.
再强调一下，这是梯度函数在u方向上的分量。
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And you can experience it all on the Internet at americanhistory-dot-s-i-dot-e-d-u.
VOA: special.2010.01.11
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Now, assuming that we trust the government-- I think the U.S. Government has never defaulted on its debt-- we'd take that as a riskless return.
假设我们信任政府-,假设美国政府从未拖欠债务-,可以把它当作无风险回报。
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Well, it's not just in the U.S., essentially every--I don't know if there's any exception.
当然不仅仅是在美国,实质上是每个...我不清楚是否有特例
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