This is the 1997th most frequent Chinese word.
維持
"維持" means "to maintain" or "to preserve."
In this sentence, '維持' refers to the act of maintaining a particular state or condition, in this case, health, through regular activity.
他每天跑步保持身體健康。
He runs daily to maintain his health.
Here, '維持' is used to denote the effort to uphold and continue the proper functioning of business operations.
公司的主要負責人努力維持業務運作。
The main manager of the company works hard to sustain the business operations.
'維持' illustrates the action of preserving or sustaining a desirable state, specifically peace, through mutual actions.