state-owned 为什么要加“-”符号

state-owned 为什么要加“-”符号 listed state-owned,unlisted state-owned state owned enterprise State-owned Company是什么意思 state-owned enterprise是什么意思 state-owned listed State owned corporation什么意思 state-owned什么意思?谢谢! state-owned juristic person share state-owned,state和national有什么区别?national library ,state library,state-owned enterprise state-owned enterprise怎么读?音标是什么? In some countries ,—— are called pubilc school'are not owned by the state.为什么不是which而是wha railways are _____by the state(own)是owned吗 the State-owned Assets and Administration Commission怎么翻译 这个是什么意思 state-owned companies in china are market oriented? 请问 state-owned companies in china are market oriented? should media be state or private owned?(what are the advantage/disadvantage of both systems我真的太着急这要,麻烦快点,好吗?谢谢 the state of being dirty这里为什么要加一个being帮托谁来回答一下!为什么要用动名词形式呢？