slam-bang /ˈslæmˈbæŋ/
  (ad.)砰然,轟地一聲,氣勢兒猛地
  Slam-bang adv. With great violence; with a slamming or banging noise. [Colloq.]
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  slam-bang
       adj : violent and sudden and noisy; "a slam-bang collision"
       adv 1: in a careless or reckless manner; "the shelves were put up
              slapdash" [syn: slapdash]
       2: with heedless speed; "yachts ran slap-bang into the convoy
          at 15 knots an hour"
       3: in a violent or sudden or noisy manner; "the pans fell
          slam-bang and woke the whole house" [syn: slap-bang]