Muntains blanketed in wildfire smoke in US
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The photo taken on September 21, 2020 shows mountains blanketed in wildfire smoke in Montana, U.S.. (visual.people.cn)

The photo taken on September 21, 2020 shows mountains blanketed in wildfire smoke in Montana, U.S.. (visual.people.cn)

The photo taken on September 21, 2020 shows mountains blanketed in wildfire smoke in Montana, U.S.. (visual.people.cn)