劍橋詞典a special , happy , and important day that you will always remember 值得紀(jì)念的日子；有特殊意義的日子；喜慶日 The day I first set foot in America was a red-letter day for me. 首次踏上美國(guó)的那一天對(duì)我來(lái)說(shuō)有著特殊意義。 返回 red-letter day