以前孩子们在街区自由自在地闲逛，想和谁玩就和谁玩，街灯亮起了才肯回家。 这样的好日子早已经一去不返啦。

The days when children roamed the neighborhood and played with whomever they wanted to until the streetlights came on disappeared long ago, replaced by the scheduled play date.

youdao

街灯在黄昏时分亮起来。

The street lights go on at dusk.

《牛津词典》

街灯现在开始亮起来了。

The lamps now began to be lighted.

youdao