一年内不为乐趣而读书的高中生人数在20年间增加了3倍。

The number of senior high schoolers not reading books for pleasure in a year increased three times over 20 years.

youdao

一年内不为乐趣而读书的高中生人数在20年间增加了3倍。

The number of senior high schoolers not reading books for pleasure in a year increased three times over 20 years.

youdao