Then updraft wind currents carry the light, positively charged ice crystals up to the top of the cloud.
然后上升气流将轻盈的、带正电荷的冰晶带到云的顶部。
Fallout from a nuclear explosion may be carried by wind currents for hundreds of miles if the right conditions exist.
如果条件存在，核爆产生的放射性尘降物会随风漂移数百英里。
But surprise, a lot of that air pollution is coming right back at us, carried by wind currents.
然而更惊人的是，那些大量的空气污染又随着风向直扑回来。
But surprise, a lot of that air pollution is coming right back at us, carried by wind currents.
然而更惊人的是，那些大量的空气污染又随着风向直扑回来。
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