In the face of the variation of the virus, not only China but also other countries have to take action to fight against the crisis.

面对病毒变异，不光是中国，其他国家也必须采取行动对抗这次危机。

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How to estimate the variation in arbitrary directions.

还要学会在任意的方向上计算其变化。

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Listing 1 shows some of the variation that's possible.

清单1列出了一些可能的变体。

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"The remaining 88 percent of the variation from one center to another are unmeasured factors, that we don't quite know what those factors are."

VOA: standard.2010.07.14

Every culture is going to have Pan Am smiles, happiness smiles, coy smiles, but the variation of that sort is something which will vary as a result of how you're raised and the people around you.

每一种文化都有问候式微笑，开心的微笑，腼腆的微笑，不同还在于,你是怎么被抚养大，你身边人如何。

耶鲁公开课 - 心理学导论课程节选

The variation looks like this.

我改成这样

耶鲁公开课 - 基础物理课程节选

Figure 1 illustrates the variation in three-year relative return performance of four value and growth strategies.

FORBES: Value Stocks are in the Eye of the Beholder

Approximately 50% of the variation in sleeping disorder symptoms can be pinned on genetic factors.

BBC: NEWS | Health | Genes to blame for restless sleep

Part of the variation has to do with differences in law from state to state.

FORBES: For Dying, Geography Can Be Destiny