The laxity of export control authorities has made a significant contribution to the problem.

出口管理当局的松懈是导致此问题的重要因素。

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This strange characteristic of concrete made a significant contribution to the success of the Roman Empire.

混凝土的这种奇特特性为罗马帝国的成功作出了重大贡献。

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In any field of endeavor, it is impossible to make a significant contribution without first being strongly influenced by past achievements within that field.

在任何努力领域，如果不首先受到该领域过去成就的强烈影响，就不可能作出重大贡献。

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And nothing else is going to make a significant contribution to it, OK?

并没有什么其他的因素,会对它有明显贡献？

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Oprah Winfrey will make a significant contribution, first on the Internet, then on the cable channel.

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In so doing, a significant contribution could be made to enhancing the verifiability of that accord.

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The company feels that speculators have had a significant contribution to increasing coffee prices.

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