敌军发动闪电战，我们毫无防备。

The enemy launched a ___blitz and we were caught off guard.

竞选团队发起了一场闪电战式的宣传活动来争取选民。

The campaign team launched a ___blitz of promotional activities to win voters.

防守队员没能抵挡住那次闪电般的快速进攻。

The defense couldn't stop the sudden ___blitz from the offense.