nutshell

名词 nutshell:

1. the shell around the kernel of a nut

1. Just give me the facts in a nutshell.
   只要简要地告诉我事实
2. That, in a nutshell, is what we're doing.
   简单地说，那就是我们正在干的事情。

nut.shell

n.（名词）
The shell enclosing the meat of a nut.
坚果外壳：包围果果肉的硬壳

<习惯用语>in a nutshell
In a few words; concisely:
简括地：简言之；简要地说：
例句：
Just give me the facts in a nutshell.
只要简要地告诉我事实