Translation of "Maintain" in Chinese

Maintain rational thought.

保持理性的思维。

- It is hard to maintain one's reputation.
- It's hard to maintain one's reputation.

維持一個人的聲譽是很難的。

Each of you must work hard for a lifetime, and only then will you be able to maintain a relationship.

彼此必須一輩子努力,才能把感情维系好。