There is a paucity of academic work on fringe political groups.关于边缘政治团体的学术作品很稀缺。Skilled workers were becoming increasingly scarce.技术工人越来越稀缺。The scarceness of the metal made it valuable.这种金属因稀缺而变得贵重。Work in the building trades became scarce.建筑行业的工作变得稀缺了。