practice and understand的用法和樣例：
例句
- In the two basic forms of practice and cognition, culture is a special form of movement resulted from the contradiction between the two.
文化是為實踐與認識的內在矛盾所推動的特殊運動形式，表現為實踐與認識兩種基本活動形式。 - Practice in matching unknown words with known words in the context of a teacher training text.
在一篇教師培訓課文中練習把生詞與認識的詞相匹配。
