Yījiā rén xiāngqīnxiāngài, rìzi guò de hěn xìngfú.
A family that loves each other dearly lives happily.
Tips
memory
The 相…相… pattern signals mutual action: 相亲 (mutually close/dear) + 相爱 (mutually loving). Both halves describe the same bond from different angles — closeness and love.