blast off片語動詞KK [blæst ɔf] /blæst ɔf/發音片語動詞1發射升空、點火升空The rocket blasted off from the launch pad at dawn.火箭在黎明時分從發射台升空。2飛快離開、一溜煙走掉口語He blasted off on his motorcycle before I could say goodbye.我還沒來得及道別，他就騎著機車一溜煙走了。名詞1發射、升空Thousands of spectators gathered to watch the blastoff.數千名觀眾聚集觀看火箭發射。