相互的

人与人之间的信任是相互的，需要双方共同维护。

Trust between people is mutual and requires both sides to maintain it together.

Here, 相互的 acts as an adjective modifying 信任. 共同维护 means 'to maintain together'.

他们的合作是相互的，各取所需，共同发展。

Their cooperation is reciprocal, each getting what they need and developing together.

相互的 describes the nature of their cooperation. 各取所需 is a common idiom meaning 'each takes what they need'.

友谊是相互的，你付出多少，就会收获多少。

Friendship is mutual; what you give, you will receive.

相互的 emphasizes the two-way nature of friendship. 付出 and 收获 are verbs for 'to give' and 'to receive'.

夫妻之间应该相互理解，相互支持，才能白头偕老。

Spouses should understand and support each other mutually to grow old together.

相互 here acts as an adverb, modifying the verbs 理解 and 支持. 白头偕老 is an idiom meaning 'to grow old together'.

国家的繁荣与人民的幸福是相互关联的。

The prosperity of the nation and the happiness of the people are mutually related.

相互关联的 means 'mutually related' or 'interconnected'.

他们的爱是相互的，深沉而又真挚。

Their love is mutual, deep and sincere.

相互的 describes their love. 深沉 and 真挚 are adjectives for 'deep' and 'sincere'.

环境保护与经济发展并非相互对立，而是可以相互促进的。

Environmental protection and economic development are not mutually exclusive, but can mutually promote each other.

相互对立 means 'mutually opposed' or 'mutually exclusive'. 相互促进 means 'mutually promote'.

在团队中，成员之间要相互信任，相互配合，才能达到最佳效果。

In a team, members must trust and cooperate with each other mutually to achieve the best results.

相互 modifies 信任 and 配合, indicating mutual actions. 最佳效果 means 'best results'.