夜不闭户

yè bù bì hù de shí dài yǐ jīng bù fù fǎn le

夜不闭户的时代已经不复返了。

The days are gone when you could leave your door unlocked at night.

ér shí de xiāng cūn shì kě yǐ yè bù bì hù de

儿时的乡村，是可以夜不闭户的。

During my childhood days, house doors could be left ajar at night.