a crushing blow的用法和样例：
- To Wilson and House this was a crushing blow, almost a betrayal.
- We should gather our forces together so we can deal our opponent a crushing blow.
- There is one chance to score a crushing blow per strike. The chances from different sources are summed up to determine the final chance to score a crushing blow.
- Our American headquarter office, used to be on 46th floor of the One World Trade Centre, also received a crushing blow along with the buildings toppling down.
- Victory over Barrera at the MEN Arena would likely propel Khan to a world title shot later this year, though defeat would deal a crushing blow to his fledgling career.