beat at

• vt. 敲

例句

用作及物动词 (vt.)

1. She is pecking away at the keys of a typewriter.
   她不停地敲打着打字机的键。
2. He knocked at the door and entered.
   他敲了敲门便走进去了。

词汇搭配

• beat someone at his own weapon 以彼之矛攻彼之盾...
• beat someone at his own weapons 以彼之矛攻彼之盾...
• beat someone at his own game 在某人的擅长的活动上...