"I haven't seen him since the day before yesterday"那我最后一次看到他是哪一天?前天还是大前天?

"I haven't seen him since the day before yesterday"那我最后一次看到他是哪一天?前天还是大前天?
"I haven't seen him since the day before yesterday"那我最后一次看到他是哪一天?
前天还是大前天?

"I haven't seen him since the day before yesterday"那我最后一次看到他是哪一天?前天还是大前天?
直译是：自前天起我就没再见到他.
因此,最后一次见到他是前天（从那以后没再见到他）.

前天。就是since后面的时间。

前天

I haven't seen him 我没有看见他 since自，自从。 the day before yesterday昨天。
我没有再看见过他自昨天后。
所以你想一下就知道了，左后一次见面是昨天。