In a nutshell 简单地说
Researchers from Pennsylvania reported to the American Chemical Society that walnuts contain the highest level of antioxidants compared to other nuts, and should be eaten more as part of a healthy diet. Antioxidants are known to help protect the body against disease.
短语 in a nutshell 的意思是简言之、简单的说。常用在总结报告消息的语境中。
You haven't studied hard enough and did badly in your exams. In a nutshell, you'll have to sit this year's class again next year.
Our company didn't sell much and the economy is doing badly. In a nutshell, we are out of business.
单词 nuts 可用来形容某人疯了或过于大胆。
Do you intend to cross the Atlantic Ocean in a kayak? You are nuts!