流传至今的英语短语怎么说

流传至今的英语短语可以翻译为 "English phrases that have been handed down to this day" 或 "English phrases that have survived to this day." 举个例子， "once in a blue moon" 就是一个流传至今的英语短语，它的意思是 "很少发生" 或 "极其罕见"。