She looked back on the past without regret.

她回首往事毫无遗憾。

《牛津词典》

She looked back now to that fateful day in December.

她现在回顾十二月里那决定性的一天。

《牛津词典》

She looked back on her career with great satisfaction.

回顾自己的事业，她深感欣慰。

《牛津词典》

People looked at her strangely. She was not carrying him on her back, the traditional way.

VOA: special.2009.05.25

She held back her skirts and turned her feet one way and her head another way as she looked down at the shiny, pointed boots.

VOA: special.2009.09.05

She herself never looked back to her younger days.

VOA: special.2009.09.05

It was a minute or so before she looked back at Eva.

NEWYORKER: The Bell Ringer

The head of the IMF said that when she looked back at the UK's deficit in May 2010 and imagined there being no plan to reduce it "I shiver".

BBC: UK Politics

And she hasn't looked back.

CNN: Tour guide helps kids find way to school