Bad policy can decimate the social fabric , but good policy can only modestly improve it .
坏的政策可以毁掉社会结构，而好的政策也只能稍稍地改进社会结构。
In other words , the president who sent seals and drones into pakistan to kill osama bin laden and decimate al-qaeda might in the end use force in iran too .
Critics contend that the bankers will try to keep many types of derivatives away from the clearinghouses , since clearinghouses represent a step towards broad electronic trading that could decimate profits .
