... 自由群：free groups 自由可动性：free liberty 自由决策变量：free decision variable ...
双语例句
1
The essential belief of the first free government in the world was liberty for all men who could control themselves.
世界上第一个政府的基本信念是给所有能自控的人自由。
2
Or, because no trip to New York is complete without seeing the Statue of Liberty, jump on the free Staten Island Ferry for a view of this enigmatic lady, Ellis Island and lower Manhattan.