This is the 3243rd most frequent Chinese word.
利於
Beneficial to; advantageous for.
Here, '利於' is used to express that an action (exercising) contributes positively to a condition (health).
多運動有助於身體健康。
Exercising more is beneficial for one's health.
In this sentence, '利於' indicates that a habit or practice (good schedule) provides an advantageous effect on an ability (learning).
保持良好作息利於學習。
Maintaining a good schedule benefits learning.
The expression '利於' in this context shows that a quality (open attitude) facilitates a process (communication and understanding) effectively.