大前天

wǒ men dà qián tiān wǎn shang chī de kǎo mǎ líng shǔ

我们大前天晚上吃的烤马铃薯。

We had baked potatoes night before last.

dà qián tiān wǎn shang xià le yī yè de yǔ

大前天晚上下了一夜的雨。

There was a storm a few nights ago.

wǒ dà qián tiān diū le shǒu jī

我大前天丢了手机。

I lost my cell phone three days ago.