痒感；发痒的感觉
先理解核心含义，再看它在真实句子里的用法。
痒感；发痒的感觉
an itchy feeling resembling the result of tickling
My little sister loves it when I give her a tickle before bed.
我妹妹很喜欢睡觉前我给她挠痒痒。
常指喉咙等部位的轻微痒感
挠痒的动作
The act of tickling.
类似挠痒的痒感
An itchy feeling resembling the result of tickling.
A quick tickle under the chin is often enough to cheer up a crying baby.
在下巴上快速挠一下，通常就足以逗笑哭泣的宝宝。
The kids gave each other tickles until they were both out of breath.
孩子们互相挠痒痒，直到两人都喘不上气来。