We thus easily get into great difficulties from the necessity of viewing culture, at one moment, as a part of the man and, at another moment, as a part of the environment.
【正确答案】正确答案：有时，我们必须把文化看作人类的一部分，有时，则把它看作环境的一部分，因此很容易陷入困境。
【答案解析】解析：句子主干：We get into difficulties from…；viewing后接两个并列的介词短语as…，as…