而且，随着大流行病在国内和国际上波浪式相继传播，病毒的内在毒力可能会逐渐发生变化。

In addition, the inherent virulence of the virus can change over time as the pandemic goes through subsequent waves of national and international spread.

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玻璃幕墙前的垂直百叶具有控制光线进入的功能，创造一个精致典雅的又有如平缓变化的波浪般透明的立面。

Vertical louvres at the glass facades have the function of controlling light ingress and create a delicate and elegant transparent facade with gently changing waves.

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在本例中，不断变化的波浪也是我们拍摄的一部分内容。

In this case, the ever-changing waves are part of our shot.

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