system of collective security

• 集体安全制度

system of collective security的用法和样例：

例句

1. The political battle over President Bush's plan to revamp the U. S. government pension system known as Social Security is expected to intensify over the next few weeks.
   有关布什总统提出的修改政府退休制度，也就是社会安全制度的政治斗争，预期在未来几个星期将会更加激烈。