"记得吃饭" 的英文是 "remember to eat"。这个短语来源于人们需要提醒自己不要忘记吃饭。

例句：

Remember to eat lunch today. (记得今天中午吃饭。)

Don't forget to eat dinner tonight. (别忘了今晚吃晚饭。)

Make sure to eat something before you leave. (确保在你离开之前吃点什么。)

Please remember to eat regularly and stay healthy. (请记得定期吃饭，保持健康。)