concept of freedom的用法和样例：
例句
- Among the plentiful thoughts of ecofeminism, the Nature Concept Theory is a shining point.
其中生态女性主义自然观是生态女性主义丰富思想中的一个亮点。 - Is the materialism and the diagnostic method unification, as well as materialism natural view and conception of history unification.
是唯物主义和辩证法的统一，以及唯物主义自然观和历史观的统一。
