Then he started reading up the subject in the public library of Changsha.

然后他开始在长沙公共图书馆阅读了许多有关这问题的书。

youdao

Then he started reading up the subject in the public library of Changsha.

然后他开始在长沙公共图书馆阅读了许多有关这问题的书。

youdao