superior trade union的用法和樣例：
例句
- The next higher level trade union shall assist and guide the basic level labor disputes conciliation.
上級工會對基層勞動爭議調解工作，進行指導和幫助。 - The trade unions at the higher level may assign personnel to assist the direct the enterprises to establish trade unions, no unit or individual may obstruct.
上級工會可以派員幫助和指導企業職工組建工會，任何單位和個人不得阻撓。
