名詞 battering:

1. the act of subjecting to strong attack
   同義詞：banging

動詞 batter:

1. strike against forcefully
   同義詞：buffet, knock about, batter
2. strike violently and repeatedly
   同義詞：clobber, baste, batter
3. make a dent or impression in
   同義詞：dinge, batter

1. He kept battering (away) at the door.
   他接連不斷地砸門。
2. Someone is battering at the door.
   有人在使勁敲門。