1. to continue to be involved or engaged in an activity, project, or relationship
The company decided to maintain involvement in the research project despite budget cuts.
A empresa decidiu manter envolvimento no projeto de pesquisa apesar dos cortes orçamentários.
2. to sustain one's participation or commitment to something over time
She made a commitment to maintain involvement in community service.
Ela se comprometeu em manter envolvimento no serviço comunitário.