a federation of labor unions的用法和樣例：
例句
- The NUJ said it intended to meet with representatives of the Bectu and Unite unions to co-ordinate a response.
全國記者工會說將和同廣播娛樂電影與劇院工會和總工會協調后才作出回應。 - Beijing hopes that better protection for workers through the union and the new labor law will placate its increasingly restive manufacturing workforce.
北京期望通過總工會對工人提供的更好保護，以及新的勞動法規，來安撫日益不穩定的製造業勞動力。
