a half century ago
网络释义
... Half Century Ago 半个世纪以前 A Half Century Ago 半个世纪以前 Over Half Century Ago 半个多世纪以前 ...
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half a century ago 半个世纪前
双语例句原声例句权威例句
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Xiao Luo: Oh, it's one and a half century ago!
小罗：距今都一个半世纪多了呀！
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That might not have been true a half century ago.
这在半个世纪前本无法实现。
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The United States invented the modern solar cell over a half century ago.
美国在五十年前就已经研发出了现代太阳能电池。
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He and his brother-in-law,E.J.Cossman, created the Uncle Milton Ant Farm more than a half century ago.
VOA: special.2011.02.15
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That might not have been true a half century ago.
这在半个世纪前本无法实现。
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A half-century ago,for example, producing genetic copies of animals was only a dream of scientists.
VOA: special.2010.03.23
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