柯林斯詞典jet stream (jet streams) 1. N-COUNT The jet stream is a very strong wind that blows high in the Earth's atmosphere and has an important influence on the weather. 噴流 返回 jet stream劍橋詞典a narrow current of strong winds high above the earth that move from west to east （地球高空自西曏東的）急流 返回 jet stream