痛打

frittering away───一点点地浪费

battering ram───破城槌（等于ram）；撞车

beavering away───努力工作；勤奋工作；辛勤劳动；埋头苦干

hammering away───苦心研究

backing away───无法维持正常交易；堵墨

barter away───吃亏廉卖；拿…作交易

battering down───v.打烂

There's someone battering away at the door.───有人在不停地嘭嘭敲门。

Someone is battering away at the door.───有人在砰砰擂门。

Someone is battering away at the door.

He kept battering away at the door.

There's someone battering ( away ) at the door.