后天的英文是：the day after tomorrow。
day就是一天的意思，after是之后的意思，而tomorrow是明天的意思，而英文一般用倒装所以把day放在前面，再用介词after连接，整体的意思就是：明天的后一天，这里提醒一下时一般要加上the，即the day after tomorrow。
the day after tomorrow造句
1、We are leavingthe day after tomorrow.
2、I’m freethe day after tomorrow.
3、School beginsthe day after tomorrow.
4、B I'm freethe day after tomorrow.
5、About tomorrow, we will knowthe day after tomorrow.
6、That is scheduled for shipmentthe day after tomorrow.
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