“Maintain trust” is a direct translation of “保持信任” in English. When it comes to expressing the idea of maintaining trust in practical, everyday language, here are several phrases that can be used:

1. “Let’s keep the faith and maintain our trust in each other.”

2. “We need to nurture our relationship by keeping our trust intact.”

3. “It’s crucial to uphold our trustworthiness and keep our bond strong.”

4. “To ensure a lasting relationship, we must continue to foster and maintain trust.”

5. “Our shared success depends on us keeping our word and maintaining trust.”

6. “We should regularly communicate and reinforce our trust in one another.”

7. “Let’s be diligent in our efforts to preserve and maintain the trust we have built.”

8. “Trust is the foundation of our partnership; let’s work together to keep it solid.”

9. “We must prioritize transparency and honesty to maintain the trust we’ve earned.”

10. “By being reliable and consistent, we can sustain the trust that’s essential for our collaboration.”

These phrases can be adapted to different contexts and situations, whether in personal relationships, professional settings, or any other area where trust is a crucial factor.