a serious collision (especially of motor vehicles)
同义词：smash
damage or destroy as if by violence
同义词：bang up??/??smash up??/??smash
This serenity is hard to reconcile with the history of violent smash-ups that the heap-of-rubble theory demands.
ECONOMIST: Asteroids
An analysis of these smash-ups indicates the mass of the particle being sought.
WSJ: New Data Boosts Case for Higgs Boson Find
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