our study can be divided into two parts: one is in class and the other is out of class. both of them are important to students. they depend on each other.
we must attach importance to after-class what we have learnt in class is very. limited, because only knowledge in textbooks can be acquired. however, we can learn more out of class. a most important thing is that knowledge comes from practice. in the after- class study we can apply out knowledge to practice.just iike after-class study, study in class is also very important. it occupies most of our time. we must pay much attention to it. in-class study and after-class study are closely connected with each other and improve each other.
if that' s the case, why don't we combine them and study effectively?
課上課下
我們的學習可以被分成兩部分：一部分在課堂上，另一部分在課堂外。這兩部分對學生來說都是重要的，它們互相依存。
我們必須重視課後學習。我們在課堂上學到的東西是有限的，因為只能學到課本上的知識。然而，課外我們可以學到更多的東西。最重要的是知識來源於實踐。課外學習可以讓我們把知識套用到實踐中去。
正如課外學習一樣，課內學習也很重要。它占用了我們的大部分時間，我們必須重視它。課內與課外的學習緊密地聯繫在一起，它們互相促進。
這樣的話，我們為什麼不把它們結合在一起，有效地學習呢?