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maintainIt is important to maintain your car regularly.
It is important to maintain your car regularly.To keep something in a certain state or condition.
You need to maintain a healthy diet.
You need to maintain a healthy diet.She works hard to maintain her grades.
She works hard to maintain her grades.They try to maintain a good relationship.
They try to maintain a good relationship.maintain order
maintain ordermaintain balance
maintain balancemaintain standards
maintain standardspreserve
sustain
uphold
