单词	aerialist
释义	aerialistaer‧i‧al‧ist /ˈeəriəlɪst $ ˈer-/ noun [countable] someone who goes down a mountain on skis and performs complicated jumps and turns in the air
随便看	ultrasonic ultrasound ultraviolet ululate ululation Uluru Ulysses um umami um and ah umber umbilical cord umbrage umbrella UMIST umlaut ump umpire umpteen umpteenth UMWA U.N. UN 'un un-

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