preferential crystallization

例句：

1. 1. The company's decision to invest in renewable energy is a preferential one for the environment.
   公司决定投资可再生能源是有利于环境的。
2. 2. The new policy is designed to benefit all citizens, making it a preferential one for those who are less privileged.
   新政策旨在惠及所有公民，对那些不那么幸运的人来说是一个有利条件。
3. 3. The government has introduced a preferential tax rate for low-income earners.
   政府为低收入者引入了优惠税率。