In other words, deepen traditional friendship?

Deepen traditional friendship in other words, carry forward traditional friendship and deepen mutually beneficial cooperation.

Friendship refers to the deep affection and intimate relationship between friends. It describes the strong feelings between two people. It is an emotion from a two-way relationship, that is, the feelings of both sides must be maintained together. Any unilateral goodwill or deviation cannot be called friendship.

Friendship is the source of happiness. Sociologists point out that people with different incomes and social status can have their own happiness, largely because of the existence of friendship factors.