基本解释投机行为英汉例句双语例句Then the article elaborates the principles from the points of restraining of opportunistic practice and investment demand of residents.从抑制投机行为、居民投资需求两个方面的需求原则，阐述了物业税对房地产价格的内在因素和外在因素的影响。opportunistic practice更多例句专业释义经济学投机行为