I saw Tom three days ago.

我三天前见过汤姆。

《牛津词典》

youdao

I left him three days ago on the shore of a large sea.

三天前，我在一个大海的岸边离开了他。

youdao

"They're falling faster now. Three days ago there were almost a hundred.

VOA: special.2009.08.01

Tunisia is observing three days of mourning for people killed in the revolution that ousted the president a week ago.

VOA: special.2011.01.22

The 120ft state-of-the-art boat, unveiled by the Queen earlier this month, left Dartmouth three days ago for sea trials.

BBC: Damaged yacht 'can still win'

Blackburn boss Paul Ince made six changes to the team which beat Sunderland by the same score three days ago.

BBC: Blackburn 1-2 Sunderland

But three days ago the High Court refused permission, saying the claim fell short of the "high threshold" necessary to block extradition.

BBC: Crete attack case five 'to be extradited to Greece'