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  • word of the day

    clear-air turbulence

    clear-air turbulence - 365bet中国官方网站 definition and meaning for word clear-air turbulence

    Definition
    (noun) strong turbulence in an otherwise cloudless region that subjects aircraft to violent updrafts or downdrafts

  • Word used in video below:
    text: air balloon the sky is full of hot air
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