“据传说”的英语可以翻译为：eportedly ...

据传说,那个叛徒已经自杀了.It was given forth that the traitor had killed himself.据传说,亨利同玛丽订婚了.The report passes current that Henry is engaged to Mary.据传说, 瓦伦丁有特殊的能力,可以治愈多种疾病.According to legend, Valentine had special abilities that ...