1, improving day by day, is an idiom in China, and its pinyin is rē zhē nē nē shà n, which means improving day by day. It is used as adverbial and predicate.

2, idiom explanation: true: achieve. Gradually reach the perfect situation day after day.

3. Usage of idioms: as adverbial and predicate.

4. Source: 2065 438+08 07 1 People's Daily Online: The legal system is improving day by day, and there is a long way to go to improve quality and efficiency.