Zhǐyào háizi men ānjìng xiàlái, jiālǐ jiù tiānxiàtàipíng le.
Once the kids quiet down, peace reigns at home.
Tips
usage
Often used semi-ironically about small-scale "peace" - e.g. a household, an office. Pair with 终于 ("finally") for the everyday humorous register: 终于天下太平了 ("peace at last").
