The scientists tested this material in a variety of conditions and found it could be rapidly and repeatedly charged even if the day was cloudy, overcast or rainy.

科学家在不同的条件下对这种材料进行了测试，发现即使是在阴天、多云天气或是雨天，它也能够迅速、重复地补充能量。

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Cloudy in the morning, overcast in the afternoon.

上午多云，下午阴天。

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Among clear air, cloudy sky and overcast sky, the maximum of reflective ratio within visible and near infrared tunnels appears in overcast sky.

碧空、昙天、阴天中，可见光与近红外通道的反射率，均是以阴天为最大；

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With overcast, cloudy and cold weather helping ample seam and swing bowling on relatively green tops, England has never been India's favourite playing field.

BBC: Is India's cricket debacle the worst ever?