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

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

youdao

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

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

youdao