任何的阅读材料都可以，但是务必要做到每天至少读两个小时的书。

Any reading material is fine, but make sure you study for at least two hours every day.

youdao

任何的阅读材料都可以，但是务必要做到每天至少读两个小时的书。

Any reading material is fine, but make sure you study for at least two hours every day.

youdao