The book is about the ABCs of nature.(F)
The book is about the ABC's of nature.(T)
这本书是介绍大自然基础知识的。
就美式用法而言,说“某学科的基础知识”要用the ABC's of... 但在英式用法中, the ABC of... 也是正确的。
上期答案:
leaving nothing to be desired
It is important for us to learn some new skills while we are young.