A report about a new treatment for dyslexia raised false hopes among sufferers.一篇有关治疗诵读困难症新方法的报道惹得患者空欢喜一场。The increase in sales at the end of the year proved to be a false dawn.年底销售的增长结果证明只不过是空欢喜一场。The ceasefire turned out to be another false dawn.这次停战结果又是一场空欢喜。