turn over a new leaf
Chinese idiom, Pinyin is x ǐ x ī nhu í mi à n, meaning complete repentance, the same as "reform". From the epitaph of Wang Shushi.
The origin of Idioms
According to Qian Qianyi's epitaph of Wang Shushi in the Qing Dynasty, "learning his repeated teachings, out of sincerity, you can't help but wash your heart and take an oath."
Idiom usage
It means to repent completely.
turn over a new leaf
offer congratulations on the completion of a new residence - yàn què xiāng hè
it is hard to change one 's nature - běn xìng nán yí
support those in distress and aid those in misery - fú wēi jiù kùn