The Education Secretary accuses teachers of wanting to return to a dark age.

教育秘书长指责教师们想回到愚昧时代。

《柯林斯英汉双解大词典》

When an ice age begins, the continental ice sheets grow, steadily reducing the amount of water evaporated from the ocean that will eventually return to it.

当冰河时代开始时，大陆上的冰原逐渐增大，从海洋中蒸发出来的水逐渐减少，而这些水最终又会回到陆地上。

youdao

One old idiom is "luoyeguigen", which means returning to one's homeland at the old age, like fallen leaves return to the roots of their trees.

有个古老的成语叫“落叶归根”，意思是年老时回到自己的家乡，就像落叶返回树根一样。

youdao

Frank McCourt left Ireland at the age of nineteen to return to New York City where he was born.

VOA: special.2009.12.27

And with fewer Asian Carp crossing his nets, Isaak hopes normalcy will return to a way of life he has known since the age of ten.

VOA: standard.2010.07.19

Some political parties had protested against a return to the lower age limit.

BBC: Indian bill on tough rape laws passed by parliament

Many hoped for a return to the golden age of the Haldane model of Whitehall whereby advice was on paper, ministers read it with respect, and collective decisions were collectively processed through a network of cabinet committees.

ECONOMIST: Struggling for the prince��s ear

They want to return to retirement at the age of 60 (it has just been raised to 62), and to invent 300, 000 public-sector youth jobs.

ECONOMIST: Charlemagne