As an important teaching tool, a dictionary is learners 'good teacher and their helpful friend as well.

作为一个重要的学习工具，词典不但是学习者的良师，而且也是益友。

youdao

As an important teaching tool, a dictionary is learners 'good teacher and their helpful friend as well.

作为一个重要的学习工具，词典不但是学习者的良师，而且也是益友。

youdao