slap ·noun
Definition: a hit with the flat, inside part of your hand Level: C2
他讲笑话时，她开玩笑地拍了一下他的胳膊。
She gave his arm a playful ___slap as he told the joke.
打一下手是阻止孩子触摸危险物品的旧式方法。
A sharp ___slap on the hand was the old-fashioned way to stop a child from touching something dangerous.
在激烈的争吵中，他强烈地想扇她一巴掌，但他克制住了自己。
In the heat of the argument, he felt a strong urge to deliver a ___slap across her face, but he restrained himself.