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This phenomenon typically occurs over open terrain on a day with clear skies and calm winds.
这个现象在晴朗和微风的日子及在空旷的环境比较容易出现。
youdao
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This phenomenon typically occurs over open terrain on a day with clear skies and calm winds.
这个现象在晴朗和微风的日子及在空旷的环境比较容易出现。
youdao