countermeasures是什么意思

　　例句：

　　Because the threat never developed, we didn't need to take any real countermeasures.

　　威胁从未加剧，因此我们没有必要真采取什么对策。

　　The Development of Credit System and Its Possibility and Countermeasures in China

　　学分制发展及我国实施学分制的可能与应对

　　The Effect of Stock Market on the Economic Growth and Research on Countermeasures

　　股票市场对经济增长的作用及对策研究

　　Problems and Countermeasures on Information Management of Coal Enterprises

　　浅析煤炭企业信息化管理现状及对策研究

　　Existing Problems of the Second College English Class and the Countermeasures

　　大学英语第二课堂存在的问题及对策