后天用英语怎么说啊

"后天"在英语中可以翻译为"the day after tomorrow"。这个词的来源可以追溯到古英语时期，其中"tomorrow"是"tō morgen"的变体，意思是"明天"。"the day after tomorrow"可以用来描述两天后的日子。

例句：

I have a meeting the day after tomorrow. (我有一个两天后的会议。)
The weather forecast says it's going to rain the day after tomorrow. (天气预报说两天后会下雨。)
Can we reschedule our appointment for the day after tomorrow? (我们可以把约会改到两天后吗？)