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jet stream

noun
🔊/ˈdʒet striːm/
🔊/ˈdʒet striːm/
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  1. (usually the jet stream)
     [singular] a strong wind that blows high above the earth and that has an effect on the weather（地球高空的）急流
    • The jet stream in the northern hemisphere moves northward.北半球的急流向北移动。
  2. [countable] the flow of gases from a plane’s engine（飞机发动机的）喷气流