This is base class, with a number of derived classes.

这是一个基类，有多个派生类。

youdao

There actually are a number of different benefits to be derived from yoga.

练习瑜迦真的有几个与众不同的好处。

youdao

There actually are a number of different benefits to be derived from yoga.

练习瑜迦真的有几个与众不同的好处。

youdao