Scientists have photographed "upwards lightning", a rarely-seen phenomenon where electricity from storms flows into the upper atmosphere.
科学家拍摄到“向上的闪电”，一种十分罕见的现象——暴风雨中的电流向上层大气流动。
Others think bacteria might be sucked through updrafts caused by a special kind of lightning that travels upwards from cloud tops.
还有人认为，细菌也许是卷入了一种自云层顶端向上运行的特殊闪电造成的上升气流。
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