leave well alone
不要去動或改變已經很好的事物
口語·建議不干預
英文釋義
to not interfere with or try to improve something that is already satisfactory
例句
The cake is perfect, so leave well alone and don't add more sugar.
典故來源
源自19世紀諺語，勸人不要干預已經滿意的事物。