On the ground, viewers in the full shadow's path-aka the path of totality-see the moon cover the sun's disk for several minutes. Only the sun's faint upper atmosphere, or corona, remains visible.

地面上处于本影位置的观测者可以看到月球将太阳整个覆盖住，时间长达几分钟，其时只有太阳微弱的上层大气或称为日冕依然处于可见状态。

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Crank up the power, and it can emit a warning tone so loud that anyone in its path would have no choice but to cover their ears and run.

加大功率，就能发出一种警告的音调，这种音调非常之大，在它的所及范围之内的任何人听到都只能捂起耳朵逃跑。

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Marika Holland: we're still on this path of decreasing sea ice cover, but if things were stabilized in terms of greenhouse gas concentrations, we might be able to stabilize the sea ice cover as well.

玛丽卡·霍兰德：目前海冰仍在日益消融，但假如温室气体排放量能够稳定下来，也许海冰的覆盖面也将维持稳定。

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Visitors enter the park via a broad, pebbled avenue lined with twin rows of gingko trees, considered by many to be one of the most beautiful sights in the capital, especially in the autumn when golden leaves cover the path and in spring when the trees turn a fresh green.

CNN: The Best City Park

"If you are in its path ... take cover immediately to protect your life, " the weather service alert said.

CNN: Officials: 6 dead, dozens injured in Texas storm

Authorities were urging people in the path of the tornado to take immediate cover, and Fallin was urging residents not to take any risks.

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