我们只有认真地学习，努力的学习，学习对于我们来说，才是快乐的。

We can feel the happiness of study only if we study hard and carefully.

youdao

我们只有认真地学习，努力的学习，学习对于我们来说，才是快乐的。

We can feel the happiness of study only if we study hard and carefully.

youdao