He wrote an excellent book called a Theory of Fun that you all should read.

他写了一本牛书叫《快乐之道》(A Theory of Fun)，我推荐大家都应该去看看。

youdao

He wrote an excellent book called a Theory of Fun that you all should read.

他写了一本牛书叫《快乐之道》(A Theory of Fun)，我推荐大家都应该去看看。

youdao