Maintain
/meɪˈnteɪn/
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Definition
(verb) To keep up; to preserve; to uphold (a state, condition etc.).
Sentence Examples
The bureaucrats maintain solid ties with the gigantic corporations.
We must maintain the amicable relations between Japan and the U.S.
CEFR Practice Quiz
It is important to ____ a healthy diet and exercise regularly to stay in good physical shape over time.