in a nutshell

• 极其简括地； 简单地说

英英释义

Adverb:

1. summed up briefly;

   "gave the facts in a nutshell"
   "just tell me the story in a nutshell"
   "explained the situation in a nutshell"
   

词汇搭配

• like in a nutshell 一言可尽