In this case, you want to restrict the definition of a Pamphlet, which is similar to a Book in every way except that it has no author.

在本例中，希望限制Pamphlet(小册子)的定义，除了没有作者以外，它与Book完全相似。

youdao

In this case, you want to restrict the definition of a Pamphlet, which is similar to a Book in every way except that it has no author.

在本例中，希望限制Pamphlet(小册子)的定义，除了没有作者以外，它与Book完全相似。

youdao