4周搞定2000+托福核心词
在前的；前述的;v. 在...之前（precede的ing形式）
preceding
常考释义
There is also evidence that these heavy grinding stones were transported over long distances, more than 30 kilometers in some cases, and this is not something known to have been done by people of preceding periods.
也有证据表明，这些沉重的研磨石是从很远的地方运过来的，某些情况下运输距离可能超过30公里，这不是目前已知的早期人类能做到的事情。
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