We are talking about the Neolithic period here, which was the time before stone tools began to be replaced by tools made of bronze and other metals.

我们这里在说的是新石器时代，是石器开始被青铜和其他金属制工具所取代之前的那个时代。

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Now, it is not that bronze was all that rare in Greece then, it is just that bronze was valuable and could easily be recycled.

现在，并不是说青铜在当时的希腊很罕见，只是青铜很有价值，容易回收利用。

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It had a butt made also of bronze, which could be a lethal weapon.

它的尾部也是铜质的，同样也可作为一种致命的武器。

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The 23-year-old will be up against world bronze medallist Wallace Spearmon, Britain's Marlon Devonish and Ireland's Paul Hession in the 200m.

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