怎么把松散句改掉尾句？

Question

Canada is certainly a less violent place than the United States, since in the U.S. a violent crime is committed every thirty-one seconds, compared with one every four minutes in Canada.改为掉尾句怎么改

Answer 1

periodic sentence(掉尾句)中主要信息在后，次要信息在前，使句子的重心置于句尾，旨在造成悬念，引人入胜；而loose sentence(松散句)则正相反，将句义重心放在句首，使主要信息一目了然。就语法结构而言，periodic sentence(掉尾句)将句子成分中的修饰部分放在主要成分(一般为主谓结构)之前；而loose sentence(松散句)则反之。
来源：http://edu.beelink.com.cn/20080818/2569159.shtml

就这句来说，应该改为：Since in the U.S. a violent crime is committed every thirty-one seconds, compared with one every four minutes in Canada, Canada is certainly a less violent place than the United States.