And this means that the viruses that we're seeing can exchange genetic material with other viruses that are circulating. This can happen in humans, in pigs, in birds.

不幸的是变异发生了，这意味着我们寻找的病毒跟流通的其他病毒会改变遗传物质，这可以发生在人类、猪和鸟类上。

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This paper expatiates the circulating of material and energy of furniture in its life circle and the way to fulfill eco - balance.

本文从生态学的角度简析家具系统在其生命周期中物质循环和能量流动情况及其达到生态平衡的基本条件。

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The environmental protection industry base of photoelectron and micro-electrons basic material for the mutual circulating use of material and scrap is proposed.

提出了建立原料废料可相互循环利用的光电子、微电子基础材料的环保工业基地的建议。

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These include circulating extremist religious material and attempting to promote ethnic separatism on the internet.

BBC: China jails 20 on terror charges in Xinjiang