bowl someone over   
phrasal verb with bowl verb [ I or T ] uk/bəʊl/ us/boʊl/
  (KNOCK DOWN)      
  把…撞倒
to knock someone to the ground by running into them 
  She was almost bowled over by a huge dog. 她差点儿被一只大狗撞倒。 
   (PLEASE)      
 使…大为惊喜
to surprise and please someone a lot
  She was bowled over when she heard she'd won the competition. 她听说自己赢了比赛喜不自禁。