当声波之波传被阻绝于声子晶体之外时，这样的声子晶体设计将可用来当作声音的频障设计。

With acoustic propagation being mostly forbidden, the findings of the sonic band gaps can potentially be used to design sound insulation systems.

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我们有时在新闻和产品发布的喧嚣声中，倾向于忽略一些网上出现的重要事件。

Sometimes in the bustle of news and product launches, we tend to overlook some significant events that emerge from the net.

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批评声来自于那些许多相信进化论却又不在这个领域工作的人，也来自拒绝接受这一理论的人。

This criticism applies to many believers in evolution who are not actually workers in the field, as well as those who reject the theory.

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The most striking, the most powerful, of all of the mourning voices here is that of Saint Peter.

哀悼之声中最令人印象深刻，最有力的,来自于圣彼得。

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Now, the situation of the Israelites in Egypt, the text says, remains bitter. Exodus 2:23-24: ; "The Israelites were groaning under the bondage, and cried out; And their cry for help from the bondage rose up to God.

以色列人在埃及的境况，文中说，仍然很艰苦，《出埃及记》第2章23到24节：,“以色列人因作苦工，就叹息哀求;,他们的哀声达于神。

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